You open Bluesky and see a trending topic that seems random or unrelated to your interests. Another post you thought would go viral barely gets any attention. This happens because Bluesky uses an open, customizable algorithm system rather than a single corporate feed. The platform does not have a default trending topics feature like Twitter or Reddit. Instead, trending content depends on the custom feeds you choose and the moderation settings you apply. This article explains how Bluesky surfaces content, why some posts gain visibility while others stay hidden, and how you can control what you see.
Key Takeaways: How Content Visibility Works on Bluesky
- Custom Feeds > Trending tab: Third-party feeds like “Trending” or “Popular with Friends” determine which posts appear as trending — not a central algorithm.
- Settings > Moderation > Muted Words & Lists: Posts containing muted words or from muted accounts are hidden from your feed, affecting what you perceive as trending.
- Starter Packs and Following list: The accounts you follow and the Starter Packs you join directly shape the pool of posts that can trend for you.
Why Bluesky Does Not Have a Central Trending Algorithm
Bluesky is built on the AT Protocol, which separates the data layer from the algorithm layer. Unlike Twitter or Facebook, Bluesky does not run a single company-owned algorithm that decides what is trending for everyone. Instead, the platform gives users the ability to choose from multiple custom feeds. Each feed is a separate algorithm created by a developer or community member. This means that one user might see a feed called “What’s Hot” while another sees “Science & Tech.” The same post can be trending in one feed and completely absent from another.
The lack of a central trending engine has a direct effect on which posts surface. Visibility depends on three factors: the feed algorithm you have selected, the engagement signals that feed prioritizes, and your personal moderation settings. If a feed is configured to rank posts by recency, a new post with few likes can appear at the top. If a feed uses engagement scoring, only posts with many likes, reposts, or replies within a short window will surface. This is why a post about a niche hobby might trend in a specialized feed but never show up in a general feed.
Another key reason is that Bluesky does not have a single global trending topics list. The “Trending” feed you see is almost always a third-party feed that you or someone else added to the app. The feed creator decides the rules. For example, the popular “Trending” feed by @algo.bsky.social uses a combination of engagement velocity and account reputation. If your post does not get early engagement from accounts with high reputation scores, it will not appear in that feed. This is a deliberate design choice to prevent spam and manipulation.
Steps to Control Which Posts Surface in Your Feed
You can influence what appears as trending content by adjusting the feeds you use and the accounts you follow. Follow these steps to tailor your experience.
- Open the Feeds Tab
Tap the Feeds icon at the bottom of the Bluesky app. This shows your current pinned feeds and a list of available feeds. The feed you are currently viewing determines what content is considered trending for you. - Add a Trending Feed
Tap the search icon in the Feeds tab and type “Trending” or “Trending Topics.” Select a feed from the results and tap “Pin to Home.” The feed will now appear in your home tab. Popular options include “Trending” by @algo.bsky.social and “Popular with Friends” by @algo.bsky.social. - Switch Between Feeds
On the home tab, swipe left or right on the feed bar at the top to switch between pinned feeds. Each feed shows a different set of trending posts. You can see how the same post ranks differently across feeds. - Mute Words and Accounts
Go to Settings > Moderation > Muted Words. Add words or hashtags you want to hide. Posts containing those words will be removed from your feed, even if they are trending in other feeds. Similarly, go to Settings > Moderation > Muted Accounts to block specific users. - Create a Custom Feed
If you want full control, you can create your own feed using the Bluesky Feed Creator tool at bskyfeed.xyz. You can filter by language, account, keyword, or engagement metric. Once created, paste the feed URL into the Bluesky app to pin it. This gives you a personal trending algorithm.
Common Mistakes That Hide Posts from Trending
Using Only the Default Following Feed
The default feed shows posts from accounts you follow in reverse chronological order. It does not rank by engagement. If you only use this feed, you will never see trending posts from accounts you do not follow. Switch to a custom feed like “Trending” or “What’s Hot” to see broader content.
Muting Too Many Keywords
If you mute common words like “news,” “update,” or “video,” you will miss many trending posts. Review your muted words list regularly. Remove words that are too broad. Instead, mute specific phrases like “spoiler” or “NSFW” if those are your actual preferences.
Ignoring Starter Packs
Starter Packs are curated lists of accounts in a specific topic area. If you do not join any Starter Packs, your following list will be small and random. This limits the pool of posts that can trend for you. Search for Starter Packs in your interest area and follow the accounts in them.
Believing a Post Should Trend Everywhere
A post that trends in a niche feed may not appear in a general feed. This is normal. The feed algorithm is the deciding factor. If your post does not trend, check which feed you are looking at. Try adding a different feed to see if the post appears there.
Bluesky Trending Feeds vs Other Platform Trending Systems
| Item | Bluesky Custom Feeds | Twitter/X Trending |
|---|---|---|
| Algorithm control | User selects from multiple third-party feeds | Single company-controlled algorithm |
| Trending topics list | No global list; each feed shows its own top posts | Global trending topics list for all users |
| Customization | Users can create and pin their own feed algorithms | Limited to muting topics or accounts |
| Engagement metrics used | Depends on the feed creator; can include likes, reposts, replies, recency | Proprietary mix of volume, velocity, and account authority |
| Transparency | Feed creators can publish the algorithm code | Algorithm is a trade secret |
This table shows the fundamental difference. Bluesky puts the power of trend determination into the hands of feed creators and users. Twitter/X keeps it centralized. If you want to understand why a post is trending on Bluesky, the first question to ask is: which feed am I looking at?
You can now identify why some posts surface and others do not based on the feed algorithm and your personal settings. To see more diverse trending content, add at least two different trending feeds to your home tab and switch between them. For advanced control, create a custom feed that filters by specific engagement thresholds or keywords. This approach gives you transparency and flexibility that no other major social platform currently offers.