Glossary · Internet & Web

Comment Section

A comment section is the area below an article, video or post where readers can write public replies and discuss the content with the author and each other.

Updated October 6, 2026

A comment section is the area beneath an article, video or post where readers can add public replies and discuss with the author and one another. Replies may be shown in a flat list or nested in threads.

Why it matters

Comments add discussion and fresh text to a page, and they can build a community. They also create work and risk. Open comments attract spam links and abuse, and unmoderated comments can damage trust in the host site. Some publishers use pre-approval, login requirements, rate limits or third-party comment systems, while others turn comments off entirely.

Example

A blog configures comments so that a first-time commenter's message waits for approval, links are marked rel="ugc nofollow", and a comment containing more than two links is held automatically. That keeps spam off the page while letting regular readers post freely.

Common mistakes

  • Leaving comments open and unmonitored on old posts, which become spam targets.
  • Allowing raw HTML in comments without sanitizing it.
  • Treating comments as a measure of quality. Few comments does not mean few readers.

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