How the Instagram Algorithm Works: Your Up-to-Date 2026 Guide

Learn how the Instagram algorithm ranks feed, stories, reels, and explore, plus the three signals Adam Mosseri says matter most.

The good news: Instagram has transparently shared a ton about the magical, majestic Instagram algorithm. (At Buffer, we’re big believers in transparency, so hat tip to Instagram for that!)

The not-so-good news: Instagram has different algorithms for all parts of the app — namely feed, stories, explore, and reels.

“Does this mean I have to optimize my Instagram content four different ways to please the algo?”  

Not really. 

The overarching signals — such as watch time, likes, and sends — are the same everywhere. And the principles behind them are evergreen enough to survive the small updates. Follow these, and you’re (mostly) golden.

But still, knowing the specifics of how each subset of the algorithm works helps reach your goals faster. Reaching new people on Instagram works a tad differently from deepening relationships with the audience you already have, for instance.

Here’s how each algorithm works, the evergreen principles behind all of them, and what to do about it.

Key takeaways

• Instagram has a different algorithm for each part of the app: Instagram ranks feed, stories, explore, and reels separately, using one system for accounts you follow and another for recommendations from accounts you don't.
• Three signals matter most: Watch time, likes per reach, and sends per reach are the signals Instagram Head Adam Mosseri says carry the most weight in ranking.
• Likes matter for followers, sends matter more for reaching new people: Likes matter slightly more for reaching your followers, while sends via DM matter slightly more for reaching non-followers.
• Original content wins: Instagram gives more distribution to the original creator than to reposters, and accounts that mostly repost others' content aren't recommended to non-followers.
• Viewers can shape what they see: Your Algorithm (in reels and explore), Favorites, and "Not interested" let people tell Instagram what they want more or less of.
• Reels for reach, carousels for engagement: Reels get 36% more reach than carousels, while carousels get 12% more engagement than reels (based on our analysis of 4M+ Instagram posts).

How does the Instagram algorithm work? The short version

If you didn’t already know, Instagram’s feeds are not in chronological order. The algorithm decides how to rank content. Why not chronological?

Adam Mosseri explains ranking has two goals: 

• help people find what interests them most
• grow the overall pie of reach so there's more to go around

Without ranking, feeds would be overrun by the accounts that post most often, which tends to mean businesses and brands, and the average creator's reach would shrink.

And Instagram doesn’t have one algorithm. It runs a separate ranking system for each part of the app (feed, stories, explore, and reels), because people use each one differently. Mosseri groups them into two general types: 

• One ranks content from accounts people follow
• The other ranks content from accounts they don't follow (Instagram calls these recommendations)

Underneath, they all work the same way. They predict how likely someone is to like, comment on, send or watch a post, turn those predictions into a relevancy score, and order posts by it. Recency matters too, which is why your feed is roughly, but not strictly, chronological.

For creators, the split between the two types is the one to remember. The first decides whether your followers see you, and likes count slightly more there. The second decides whether anyone else does, and sends count slightly more. That's how new people find you.

Here's how each part of the app fits in. 

How the Instagram algorithm ranks content on each surface

Instagram surface	Who you reach	Signals that weigh most	Best for
Instagram Feed	Mostly followers, plus some recommendations	Your interaction history, post popularity, relationship with the poster	Staying visible to existing followers
Instagram Stories	Followers	Viewing history, DMs and replies, closeness to the poster	Deepening relationships
Instagram Reels	Mostly non-followers	Watch time, sends, likes, the viewer’s recent activity	Reaching new people
Instagram Explore	Mostly non-followers	Post popularity, the viewer’s activity in Explore	Being discovered by interest

In short: Feed and stories are where you keep the people you already have, and reels and explore are where you reach new ones. We break down each one below.

What the Instagram algorithm rewards across the app: Content principles and key signals

Instagram runs separate algorithms for feed, stories, explore, and reels, but they reward the same four content principles and lean on the same core engagement signals.

4 key Instagram content principles: Originality, recency, breaking content and model size

In part two of his ranking series, Adam Mosseri named four principles Instagram values when ranking content. Here’s what they are in a jiffy:

What the Instagram algorithm rewards across the app

Ranking principle	What Instagram does	What you should do
Originality	Instagram favors original creators over reposters. Accounts that mostly repost content from other accounts aren’t recommended to non-followers.	Post your own work. To share someone else’s, use a collab post or the repost button so they get credit.
Recency	Instagram ranks new posts higher, and more of each day’s impressions now go to posts under 24 hours old.	Share timely content while it’s still relevant, and expect the first 24 hours to matter most.
Breaking content	Instagram “auditions” posts from small public accounts to non-followers and keeps pushing them if they perform well.	Open with a clear hook, name the topic in the caption, and make your content shareable.
Model size	Instagram is using larger AI models to improve ranking on the platform.	Nothing to optimize. Ignore “hacks” that sound too good to be true.

If you need to understand these principles more deeply and how to apply them, continue reading:

1. Originality

“We want to create a platform that gives more distribution to the original content creator than to those who repost it,” Mosseri says. 

Instagram estimates how likely a post is to be original by looking at what the account has posted in the past, along with other signals, and Mosseri says the percentage of impressions going to original content has gone way up over time.

This has been a long time coming: Mosseri announced Instagram will has been reducing reach for aggregator accounts since April 2026. So Instagram’s been doubling down on pushing original content for a while now.

2. Recency

Instagram wants to keep up with the world as it happens. "It used to be that something might happen and you would see it on Instagram three, four, five days later, and that just doesn't work," Mosseri says.

To fix that, Instagram shortened how long it takes to understand a new post and get it into ranking, especially for people who don't follow the account. The measure it tracks is the share of each day's impressions that go to posts less than 24 hours old, and Mosseri says that number has gone way up as well.

3. Breaking content

This one is good news for smaller accounts. "We want to be a place where a new creator with a great idea can actually reach a massive audience," Mosseri says.

Instagram does this by “auditioning” content. Auditioning just means showing posts from public accounts to some people who don't follow them, and if a post does well, the platform continues pushing that post to other people. 

That's how a post from a small public creator can reach hundreds of thousands, or even millions, of people.

As someone who scrolls on Instagram way too much, I can confirm this is true: I see posts from new creators all the time in my feed now — it’s mixed with content from people I follow and other content Instagram thinks I might like.

4. Model size

The last principle is about the system rather than your content. Instagram has made its AI models "larger and larger over the last few years in order just to get better at ranking overall," according to Mosseri.

The 3 Instagram engagement signals that matter the most

Instagram tracks thousands of signals, from comments and saves to profile taps and story replies. Mosseri has named three as the most important: watch time, likes and sends. 

Likes count slightly more for reaching followers, and sends count slightly more for reaching non-followers.

Instagram’s top ranking signals and how to track them in Insights

Ranking signal	Matters most for	How to calculate it in Instagram Insights
Watch time	All areas of the app, especially Reels	Check “Average watch time” on each Reel
Likes per reach	Reaching your followers	Divide likes by accounts reached
Sends per reach	Reaching non-followers	Divide shares (Instagram’s label for sends) by accounts reached

How the Instagram Feed algorithm works

The Instagram Feed algorithm ranks three kinds of content:

• Posts from accounts that you follow
• Recommended posts that Instagram thinks you might like
• Ads

You can find all content formats ranked on your Feed — videos, photos, and carousels. 

Instagram uses thousands of ranking factors (called 'signals') to organize your feed, prioritizing content that's most relevant to each person based on their interests and past interactions.

Here are the most important signals, ranked by importance:

• What a user engages with: Posts a specific user likes, shares, saves, or comments on tell Instagram what content resonates with that person.
• Info about the content and its performance: This includes how many people like a post, how quickly people engage with it, plus more information about the post itself, like when it was posted and any location tags.
• Information about the person who posted: Instagram looks at how many people have interacted with the creator in the past few weeks. "This helps us get a sense for how interesting the person might be to you," says Instagram on their blog.
• Relationship history: Consistent interactions between accounts — like commenting on each other's posts — tell Instagram who might want to see more of your content.

With all that information, Instagram makes a series of calculated guesses about how likely a user is to interact with a post, as Instagram says:

"In Feed, the five interactions we look at most closely are how likely you are to spend a few seconds on a post, comment on it, like it, share it, and tap on the profile photo. The more likely you are to take an action, and the more heavily we weigh that action, the higher up in feed you'll see the post."

How to improve your reach in the Instagram Feed

All of these signals come down to whether people interact with your posts, so here's how to give them more reasons to.

1. Share carousel posts

If you have multiple photos (or videos) that work well together, try sharing them as one carousel or even a few mini carousels.

You can include up to 20 photos or videos in a single carousel. When a follower doesn't swipe through to the end, Instagram treats those unseen slides as "new content."

The platform will show your carousel to that same person again later, picking up with the first slide that they didn't swipe to. This gives your carousel multiple chances to get engagement.

This matches what we found in our analysis of more than 4 million Instagram posts: carousels earn around 109% more engagement per person reached than reels, and single images earn about 34% more than reels.

2. Add audio to posts

Audio isn't limited to videos — you can add a soundtrack to single photo posts and carousels as well.

It's not a requirement, but as Mosseri points out, it can grab the attention of people who browse with sound on — and that can mean more engagement.

Plus, adding audio to a post or carousel means it can also show up for users in the Instagram Reels feed.

3. Use recommended post dimensions

The image size and dimensions of your posts can make a big difference in how they perform.

When you follow Instagram's ideal image sizes, your feed posts will appear exactly as intended with no awkward cropping or pixelation issues. This keeps your content looking polished and gives it a better chance of getting engagement.

How the Instagram Stories algorithm works

The Instagram Stories algorithm ranks stories from accounts you already follow, putting the ones you're most likely to tap, reply to, and watch at the front of your tray. Stories (photos and videos that disappear 24 hours after posting) offer creators and businesses a way to appear at the top of followers' screens as soon as they open the app.

Keep in mind that it can be tougher for brands or creators to show up here — Instagram sees stories as a place where people look for their closest friends.

Here's what Instagram's Stories algorithm looks at:

• Viewing history: Instagram tracks how often someone views an account's stories to determine how high to place them in the stories tray. The more often someone watches your stories, the more likely they are to appear first.
• Engagement history: A user's interactions — such as sending a DM or liking stories — signal to Instagram that they're interested in seeing an account's stories.
• Relationship connections: Instagram considers how close someone is offline to a creator — such as friends or family — when considering where to place a story.

Again, these signals will be used to "make a series of predictions about stories you'll find more relevant and valuable," Instagram says, "including how likely you are to tap into a story, reply to a story in DMs or move on to the next story — to determine which stories will be shown higher in your stories tray."

Instagram Stories aren't typically the best way to reach new people — Mosseri has confirmed this too. Instead, think of stories as a way to build deeper connections with people who already follow you.

They're perfect for building a community that keeps coming back. You can show up when followers open Instagram, learn more about them, and point them to your other platforms.

How to improve your views in Instagram Stories

Here are some ways to engage your existing audience with your stories to move to the front of their tray.

1. Post interactive stories

Add polls, questions, and other interactive elements to get people tapping, liking, and sharing. The more someone engages with your stories, the more likely Instagram is to bump your stories to the top of their tray.

A question sticker can turn into an entire AMA event, where you create a series of follow-up stories with your responses. It's a popular approach — even Mosseri uses it.

These interactive features also work as research tools. Polls, questions, and 'add yours' stickers can help you learn more about who's in your audience and what they actually want to see from you. Win-win.

2. Share timely, authentic, or behind-the-scenes content 

As a serial stories watcher, I love when creators share some timely, behind-the-scenes, human stuff that makes me feel connected to them. Think…

• A food creator teasing a new recipe they will share soon by showing me the ingredients (yum)
• A productivity creator randomly talking about what they do when something derails their day (I feel seen)
• A beauty creator showing me a quick hack she uses to look put together when she’s already late (it’s all about the right lipstick and mascara)

If you're only sharing your posts to stories with a quick tap, you're not giving people much of a reason to view them. Instead, mix in genuine off-the-cuff content that's relatively easy to create and shows your human side.

3. Share user-generated content

When someone tags you in their post or story — maybe they love those shoes they bought from you, or your productivity tips helped them — reshare it to your stories with a quick thank you.

This kind of user-generated content shows followers who aren't customers yet that real people love what you offer, and it builds stronger connections with your existing community. It also encourages others to tag you, since they know you might feature them.

How the Instagram Explore page algorithm works

The Explore algorithm surfaces posts from accounts you don't follow, ranked mostly by how popular a post is and how much you've engaged with similar content.

Here's where things get interesting for creators and brands looking to reach new audiences. The explore page was designed to help users find new accounts. In other words, it helps new audiences find you.

This grid-style feed shows photos and videos you're likely to be interested in based on your past activity: posts you've liked, saved, shared, and commented on.

Here are the signals that influence the Instagram Explore page algorithm.

• Information about the post: Like with feed, Instagram looks at how popular a post seems to be. How many people like, comment on, share, or save a post? And how quickly are they doing so? Post popularity signals matter more in the explore page than in feed or stories.
• A user's activity in explore: Instagram pays attention to what content a user has engaged with before, and how they've interacted with posts in the explore page in the past. The more someone engages with a certain type of post, the more likely they are to see similar content show up.
• A user's interaction history with the poster: Most content in the explore page comes from accounts people don't follow or haven't seen before. But if someone has interacted with an account before, Instagram sees that as a sign that they might be interested in more content from this account.
• Information about the person who posted: Here, Instagram looks at how often users have interacted with posts from an account in the past few weeks, to help users find "compelling content from a wide array of people," says Instagram.

Here's an example from Instagram that I found really helpful in making sense of the explore page algorithm.

"Let's say you've recently liked a number of photos from San Francisco's dumpling chef Cathay Bi (@dumplingclubsf). We then look at who else likes Cathay's photos, and then what other accounts those people are interested in.

Maybe people who like Cathay are also into the SF dim sum spot @dragonbeaux. In that case, the next time you open explore, we might show you a photo or video from @dragonbeaux."

How to get your posts in front of more people using the explore page

Here are some tips to optimize your content for Instagram’s Explore page:

1. Use trending audio tracks

Instagram pays attention to which audio tracks are taking off. When you add these popular sounds to your reels, photo posts, or carousels, your content has a better chance of reaching new people.

You don't need to awkwardly force trending audio into everything you post, but it's worth picking a trending track when it naturally complements what you're creating.

2. Give people a reason to engage right away

The explore page leans on how popular a post looks, including how quickly people like, comment, share or save it. A post that gets reactions fast has a better chance of being picked up.

A few ways to make that easier:

• Put something save-worthy in the post. A checklist, a template or a how-to that people will want to come back to.
• Tell people what to do with it. A line like “save this for later” or “send this to someone who needs it” is enough.
• Reply to comments as they come in. In Buffer’s 2026 engagement report, Instagram posts where the account replied to comments earned 21% more engagement. That’s an association, and the data can’t show that replying caused it.

3. Track post shares

Shares — especially DMs from people who don't follow you — count for more when Instagram is deciding whether to show a post to non-followers, Adam Mosseri explained in his podcast with Colin and Samir. When someone likes your content enough to send it to a friend, Instagram sees that as a strong signal of quality.

Tap View insights below a post to see which posts are being shared the most. When you spot patterns in your most-shared content, you can focus on creating more of what people want to pass along to their friends.

How the Instagram Reels algorithm works

The reels feed is almost entirely recommended content, so it's where watch time and sends do the most work. 

That makes the reels feed a particularly important area if you're looking to grow your audience. It also means the clearer your content is about what it's about (topics, niches, keywords), the easier it is for Instagram to match it with the right people.

Instagram looks at:

• A user's activity: Instagram looks at what reels people have liked, saved, reshared, commented on, and engaged with recently. When someone engages with content similar to yours, they're more likely to see your reels.
• A user's interaction history with the poster: When someone engages with an account — whether through likes, shares, or comments — Instagram takes that as a sign that they want to see more content from that account, even if they aren't a follower.
• Information about the reel: Everything from the visuals to the use of trending or original audio, overall watch time (short, punchy clips tend to win), and early engagement signals influence how widely a reel is distributed across Instagram.
• Information about the person who posted the reel: Instagram looks at signals like a creator's follower count and engagement levels to share content from a mix of creators.

Short-form video is also a big part of how Instagram connects people with their friends. Here’s what Adam Mosseri shared in his conversation with YouTube podcasters Colin and Samir:

"Short-form video is so symbiotic with connecting people with their friends," Adam told Colin and Samir. "Part of our [Instagram's] reason to be is to connect people with friends."

In other words: optimize your Instagram content to start conversations. Think about what makes your followers want to share your reel with someone they care about. Maybe it's relatable, helpful, funny, or thought-provoking.

Every audience is different, so you'll need to experiment to find what works for yours.

How to work with the reels algorithm:

A majority of the work in creating better-performing reels boils down to creating quality content your audience actually wants to see consistently. Here are more practical tips:

1. Build on momentum

If a reel takes off, you don't need to post immediately — but following up within a day or two is a smart move.

Remember, the Instagram Reels algorithm looks at how recently people have engaged with your videos, so timing your follow-up while interest is high can help you stay in their feeds. A viral reel shows Instagram that people are interested in your content, which increases the chances your next post gets seen too.

2. Think about different user types

Mosseri told Colin and Samir that about half of Instagram videos are watched without sound, so your reels need a strong visual hook to grab the attention of people who watch on mute (like me).

Add text to the first frame so it's clear what your reel's about right from the start. Creator @thepotatosauraus does this well in his music reaction videos — they work even when you're watching on mute. Each reel has the title or theme written at the top throughout, so you can see from the very first frame what he — and we — will be listening to.

3. Avoid logos or large watermarks

Instagram has said it repeatedly: Reels with logos from other apps will get pushed down in the algorithm. This doesn't apply to your own branding — only to TikTok logos or watermarks from other video editing apps.

If you're sharing videos across multiple platforms, save a version before adding any platform-specific elements. That way, when you're ready to share it on Instagram, you can upload a version that doesn't have any third-party app logos that will limit your reach.

4. Test new ideas with trial reels

Trial reels are shown to people who don't follow you first, so you can test a new format or hook without it landing in your followers' feeds. It's a do-it-yourself version of the auditioning Instagram already does for small creators. 

P.S. Did you know you can schedule trial reels with Buffer, too? 👀

How Instagram allows users to control their algorithm (and how it impacts your reach)

Instagram launched Your Algorithm to allow users more control over what they see on their app. It shows an AI-generated summary of the topics Instagram thinks a viewer is interested in, and lets them ask for more or less of a topic, remove it, or add one Instagram has missed.

It's live on reels, explore, and feed per Instagram's announcement. 

In part three of his ranking series, Mosseri said: "You can add topics you want to make sure that you never see anything from, and we're going to do our best to live up to those requests."

What it means for your reach: When a post is recommended because of a viewer's chosen topic, Instagram labels it with that topic (for example, "From Running"). To get matched, name your topic in captions and on-screen text, and stick to one niche so Instagram knows who your content is for. Instagram hasn't said how much weight declared topics carry compared with what people actually watch, so treat them as one more signal, not a shortcut.

Viewers also have three smaller tools to steer their feed.

Favorites

Viewers can add an account to Favorites from its profile. That account's posts then show at the top of their feed whenever it posts. 

What it means for your reach: A follower who favorites you sees everything you post, so it's the strongest vote a viewer can give you. It's worth asking your most engaged followers to add you.

Following feed

The following feed shows posts from accounts a viewer follows in chronological order, with no recommendations mixed in.

What it means for your reach: only your followers can see you there, and because it's chronological, your reach in that feed depends on who follows you and when you post, not on ranking.

Not interested

Viewers can tap the three-dot menu on a post or reel and choose Not interested, and Instagram will show them less content like it. For a full fresh start, they can reset their recommendations entirely (here's how), which clears what Instagram has learned about them.

What it means for your reach: a post that doesn't fit your niche is the one most likely to get tapped away, and it can teach Instagram to show that viewer less of your content. Staying on topic keeps your audience's signals working for you.

When Instagram stops recommending content

Instagram wants to keep potentially offensive content from appearing in users' feeds. To that end, it has published detailed recommendation guidelines for creators.

Posts that go against these guidelines might not violate Instagram's Community Guidelines and are still allowed on Instagram, but they won't appear on the explore page or reels tab.

Some examples of things that go against the recommendation guidelines are:

Content Instagram won’t recommend to non-followers

Content category	What it includes
Sensitive topics	Self-harm, suicide, eating disorders, or depicted violence
Adult content	Sexually explicit or suggestive imagery or themes
Regulated goods	Promotion of tobacco, vaping, or other restricted products
Misinformation	Content flagged as false or misleading by fact-checkers
Low-quality content	Engagement bait, clickbait, or contests that require likes or follows to enter

The same goes for accounts that mostly repost other people's work: since April 2026, they aren't recommended to non-followers, even if each post follows the guidelines.

8 evergreen best practices for your Instagram strategy

Instagram uses a different algorithm for each part of the app, but they do have something in common — content that people find engaging and relevant.

Here are some practical ways to work with Instagram's algorithms to get your content in front of more people.

1. Stay consistent

Posting regularly might seem like obvious advice, but the numbers back it up.

Buffer's analysis of more than 100,000 users across social media platforms shows that people who post consistently receive nearly five times more engagement per post than those who post only occasionally. And Instagram sees this recent and regular engagement as a sign that your content should be shown to more people.

Find a posting schedule you can stick with long-term, whether that's daily content or three high-quality posts a week, to avoid burning out.

2. Create original content

Originality is one of Instagram's four content principles, and it now has real teeth. Mosseri has repeatedly confirmed that accounts mostly posting content they didn't create or meaningfully transform aren't recommended to non-followers.

Creating original content could be as simple as snapshots from your morning walk, or as in-depth as a Canva design tutorial. The key is that it's yours, and not aggregated from others' accounts.

If you do want to share someone else's post, use Instagram's repost button or a collab post — both credit the original creator, which is what Mosseri has said Instagram wants to reward.

3. Look at your engagement rate, not just your reach

A post seen by 50,000 people isn't automatically better than one seen by 5,000. In part four of his ranking series, Adam Mosseri's first piece of advice to creators was to look at rates instead of raw numbers. “Too often creators look at how many views a post got or how many likes a reel got, but not at the [engagement] rate,” he says.

Engagement rate is the share of people who saw your post and engaged with it. The rates Mosseri points to are the percent of viewers who liked a reel, the percent who sent it to a friend, and average watch time. Compare them across your last 30 days of posts to see which ones actually landed.

With Buffer Insights, you don’t have to do this calculation (for each post!) manually. You can see the engagement for every post along with a platform-wide engagement rate.

4. Vary your post types

Sharing your content in different formats — single images, carousel posts, reels, stories, and lives — helps you reach a wider range of people.

It's one of the simplest ways to show up across more than one of Instagram's algorithms, and it's a great way to repurpose your content. Not everyone watches a video, so you can turn your reels into a carousel post. Or you can appeal to Instagram Story lovers by re-sharing feed posts in your stories (along with the fresh content we talked about earlier).

Below you can see how we've been making an effort to diversify the post types we use on Buffer's Instagram account:

At Buffer, we're really leaning into content repurposing not just within Instagram, but across social platforms as well.

For example, most of our reels can be used on TikTok and YouTube Shorts, too. Here's how we repurpose content across platforms — without using the other app's logos and watermarks, of course.

5. Post at the best times for you

Buffer's analysis of 9.6 million Instagram posts found the best times to post are Thursday at 9 a.m., Wednesday at 12 p.m., and Wednesday at 6 p.m. Wednesday is the best day overall, while Friday and Saturday are the weakest. Test out these best times to post on Instagram if you're new to the platform.

If you've been posting regularly to Instagram for some time, Instagram Insights will have data on the best times for you. To see your followers' most active times:

1. Go to your profile and tap Professional dashboard.
2. Tap New followers.
3. Scroll to Follower active times.

6. Develop a keyword and hashtag strategy

It's official: hashtags don't help reach, as per the man, the myth, the legend, Mosseri himself.

Instagram has also capped how many hashtags you can use in your posts and reels — and the magical number is five. So fewer, targeted tags work better than lots of generic ones.

So what works instead? Focus on adding relevant keywords to your post captions and your profile. These help people find you through Instagram's search feature and tell the algorithm what your content is about.

And don’t worry, hashtags aren't completely dead — people can still find your posts through hashtag searches. Just make your five count: pick tags that describe the post rather than generic ones like #reels or #explore. Here's how to choose your Instagram hashtags. 

If you use hashtags, Buffer’s (free!) hashtag generator can be a really helpful time-saver. With it, you just have to share what your post is about and get instant recommendations on what hashtags you should use. 

7. Focus on authentic engagement

Instagram's algorithms reward engagement, so focus on the connections you build with your audience.

Interactive stickers on your Instagram Stories — polls, questions, sliding scale rankings — are a simple way to get your followers to engage with you.

Also make sure you reply to direct messages and comments on your posts.

New comments are easy to miss among the likes, follows, and mention notifications on Instagram. To help, Buffer has engagement features that surface unanswered comments on your Instagram posts and help you reply to as many as possible, quickly. You can even create a new post from your replies using Buffer.

8. Use analytics to see what's working

One of the best ways to understand what your audience enjoys seeing is to dig into your Instagram analytics data.

Using Instagram Insights, you can check out which of your posts have had the most interactions. You can also sort posts by most comments, likes, and saves if you'd like to dig into more specific engagement metrics.

Buffer's Insights will also help you uncover your best posts (those with the highest engagement) in just a few clicks:

Once you have a list of your most engaging Instagram posts, you can start to identify what commonalities they might have. For example:

• What types of posts are they?
• What's the style of the creative?
• How is the caption structured?

With this data, you can begin to reverse-engineer what your audience is most likely to engage with and build a strategy to help get the most out of Instagram's algorithm.

How to make the Instagram algorithm work for you

The Instagram algorithm isn't one thing, and it keeps changing. But what it rewards hasn't: original content that people watch to the end, like, and send to a friend.

So you don't need to chase every update. Make something worth watching, stick to a clear niche so Instagram knows who it's for, and check your engagement rate, watch time, and likes and sends per reach to see what's working. Do that consistently and the rest gets a lot easier.

FAQs about the Instagram algorithm

What is the Instagram algorithm?

The Instagram algorithm is a set of AI systems that decide what each person sees. There are separate systems for the home feed, stories, reels, and explore, split into two broad types: one ranks content from accounts you follow, and one ranks recommendations from accounts you don't. Each predicts how likely you are to like, comment on, send, or watch a post, then orders posts by those predictions.

What are the most important Instagram ranking signals?

Head of Instagram Adam Mosseri has named three: watch time, likes, and sends, which creators can track as average watch time, likes per reach, and sends per reach. Likes count slightly more for reaching your followers, and sends count slightly more for reaching people who don't follow you.

What is Your Algorithm on Instagram?

Your Algorithm is an Instagram tool that shows an AI-generated summary of the topics shaping your recommendations and lets you add topics, remove them, or see more or less of them. It launched on reels in December 2025 and is now live on explore and feed too. To open it, go to Settings and activity, then Content preferences, then Your algorithm.

How can I improve my reach with the Instagram algorithm?

Create original posts people want to watch to the end and send to a friend, since watch time and sends are two of the three signals Instagram weighs most. Then post consistently, mix reels, carousels, and stories, reply to comments and DMs, and use your Insights to see which posts get the most shares.

Do the Instagram algorithms prefer videos?

No. Instagram ranks every post by how each user usually engages — not by format. If someone often watches and shares videos, they'll see more videos. If they tap on photos, they'll see more photos. Videos sometimes reach farther overall because people tend to watch and share them, not because Instagram gives them extra weight. In our analysis of more than 4 million Instagram posts, reels got 36% more reach than carousels, but carousels got 12% more engagement than reels.

Does posting too frequently impact ranking?

It might. Dumping several posts in a row can cause Instagram to hide some of them to keep feeds balanced. Give each post room to breathe — schedule them a few hours apart or on different days — so every update can earn its own likes, comments, and shares. You can schedule Instagram posts to appear at different times and days throughout the week to avoid spamming users' feeds. Instagram suggests spreading out your posts rather than publishing several back-to-back.

Are business, creator, and personal accounts ranked differently by the algorithm?

Your content's reach depends on engagement and relevance, not account type. As reported by TechCrunch: "Instagram doesn't give extra feed presence to personal accounts or business accounts, so switching won't help your reach."

Will posting Instagram Stories or live videos affect ranking?

Creating Instagram Stories or live broadcasting on Instagram won't affect how your content ranks within the feed, but experimenting with a wide variety of content means it's far more likely that your content will appear in more places on the app.

How do I reset my Instagram algorithm?

Go to Settings and activity, then Content preferences, then Reset suggested content. For lighter tweaks, edit your topics in Your algorithm or tap Not interested. Learn more in our guide to resetting your Instagram algorithm.

What is the 5-3-1 rule on Instagram?

The 5-3-1 rule on Instagram is a way to make your Instagram activity feel more human and more connected. For every post you share, you interact with others by liking 5 posts, commenting on 3 posts, and following 1 new account.

It's a small routine that encourages thoughtful engagement and helps more people discover your brand.

What is the 4-1-1 rule on Instagram?

The 4-1-1 rule is a content-mix rule of thumb, not an Instagram rule. For every six posts, share four that educate or entertain, one soft promotion, and one direct promotion. It keeps your feed from turning into a stream of sales pitches. 

What is the 3-second rule on Instagram?

The 3-second rule on Instagram is about keeping users 'hooked' to your reel. Those first three seconds decide whether someone keeps watching or scrolls away. A clear hook helps people understand what they're about to get. This could be a quick headline, a striking visual, or a question or statement that sets the tone. When that opening lands, your video has a better chance of holding someone's attention.