Mastodon servers communicate with each other through federation, sharing posts and profile updates across instances. When a remote server goes offline permanently or becomes unreachable, it can cause delays, failed deliveries, and wasted system resources on your instance. Mastodon includes a built-in mechanism called dead server detection that identifies and stops trying to reach these … Read more
Mastodon server operators often face unexpectedly high bandwidth costs due to outbound federation traffic. Every time a user on your instance views a remote post or follows an account on another server, your server downloads and then re-uploads that content to your local users. This duplication of data can cause your outbound traffic bill to … Read more
When you join a small Mastodon instance, the federated timeline may feel empty or slow. Public posts from other servers do not automatically appear on your instance. This happens because your server must first discover and fetch content from remote instances. A federation relay solves this by acting as a central hub that distributes public … Read more
Mastodon instance administrators often notice a sudden increase in spam or unwanted content appearing in the federated timeline. This traffic typically originates from specific remote servers that bypass local content filters. Mastodon records every incoming federation action in a structured log file, but most admins do not examine this data for spam patterns. This article … Read more
You want to post a GIF on Mastodon, but your file keeps getting rejected or plays as a static image. Mastodon supports GIF files, but it converts them to video format MP4 during upload. This conversion process has specific requirements that can cause failures if your source file does not meet them. This article explains … Read more
When you want to mention a user on Mastodon who is not on your home instance, the standard @username format will not work because Mastodon requires the full account address. Tagging someone across instances means you must include their instance domain in the mention. This article explains the correct syntax for cross-instance mentions, shows you … Read more
When you share a link in a Mastodon post, the platform usually fetches metadata from the target page and displays a preview card with a title, description, and image. If that preview card does not appear, the post looks incomplete and can reduce engagement from followers. This problem typically occurs because the shared URL does … Read more
Mastodon does not include a native draft feature in its official web interface or mobile apps. When you start composing a post and close the window, the unsaved text is lost permanently. This can be frustrating if you need to research a link, fact-check a claim, or simply take a break before publishing. This article … Read more
When you upload a header or avatar image to your Mastodon profile, the platform automatically crops and resizes it to fit fixed display areas. This cropping can cut off important parts of your image if you do not prepare the file at the correct aspect ratio. Many users discover the cropping only after saving the … Read more
Mastodon supports basic text formatting to make your posts more readable and engaging. Unlike some other social platforms, Mastodon does not rely on a visual editor for rich formatting. Instead, it uses Markdown, a lightweight markup language that converts plain text into styled HTML. This article explains which Markdown elements work in Mastodon posts and … Read more