---
title: "X (Twitter) How-To Guides: Limits, Replies and Bookmarks"
description: "How X works in practice: character limits by account type, controlling who can reply to a post, and how bookmarks differ from likes."
canonical_url: "https://bolta.ai/guides/x"
markdown_url: "https://bolta.ai/guides/x.md"
last_updated: "2026-07-28"
content_type: "platform"
publisher: "Bolta"
---

# X (Twitter) How-To Guides: Limits, Replies and Bookmarks

Source: https://bolta.ai/guides/x
Last updated: 2026-07-28

How X works in practice: character limits by account type, controlling who can reply to a post, and how bookmarks differ from likes.

## Summary

X changed a lot and documented very little of it. These guides cover the current behaviour, with the date we last checked printed on every page.

## X (Twitter) guides

- [X character limits explained](https://bolta.ai/guides/x/character-limits): The character limits on X by account type, what actually counts toward them — links, media, handles, non-Latin scripts — and why a thread is usually the better answer than a very long post.
- [How to control who can reply on X](https://bolta.ai/guides/x/who-can-reply): How reply controls work on X: the options available, how to set them in the composer or change them after posting, what happens to replies that already exist, and what restricted accounts can still do.
- [How bookmarks work on X](https://bolta.ai/guides/x/bookmarks): What bookmarks on X are, how they differ from likes, whether the author is notified, whether the bookmark count is public, and how to save and organise posts you want to find again.

## Relevant links

- [All platform guides](https://bolta.ai/guides)