How to block SeznamBot
SeznamBot is the crawler for Seznam.cz, a major Czech search engine. This page shows how to disallow SeznamBot in robots.txt, when blocking makes sense, and the visibility trade-off for sites that serve a Czech audience.
robots.txt rule
Seznam documents the SeznamBot token. To disallow it everywhere:
User-agent: SeznamBot Disallow: /
Seznam also operates additional tokens for specific products (for example a separate token for its screenshot or favicon fetchers). If you intend a blanket block, confirm which tokens appear in your logs and target each one. Match the documented token rather than a version string.
- robots.txt token: SeznamBot
- Additional Seznam product tokens may exist
- Confirm tokens from your own access logs
Weigh the Czech-market cost
Seznam.cz holds meaningful search share in the Czech Republic. Blocking SeznamBot removes the path for your pages to appear in Seznam search, so it is a deliberate trade-off, not a routine cleanup. For most non-Czech sites the crawl is low value and a block is reasonable.
A Disallow does not de-index pages already in Seznam; to remove a page from results, serve noindex on a URL SeznamBot can still fetch instead of blocking the crawl.
How it appears in analytics and logs
SeznamBot hits indicate Seznam is crawling for its Czech index. Persisting hits after a block suggest a stale robots.txt cache or a token that does not match the documented SeznamBot token.
Diagnostic use case
Cut crawl load from SeznamBot for sites with no Czech audience, while deliberately keeping it allowed if Seznam.cz search referrals matter to you.
What WebmasterID can help detect
WebmasterID classifies SeznamBot as a search bot, letting you confirm both that a block is being honoured and that you are not inadvertently cutting off a market where Seznam drives referrals.
Common mistakes
- Blocking SeznamBot for a Czech-facing site and losing Seznam visibility.
- Targeting only the main token while product tokens keep crawling.
- Assuming a Disallow removes pages already indexed by Seznam.
Privacy and accuracy notes
The rule matches the SeznamBot crawler token, not any visitor. robots.txt is a crawl request to compliant bots, not an access-control boundary.
Related pages
- SeznamBot — Seznam's web crawler
SeznamBot is the crawler for Seznam.cz, a long-established Czech search engine and web portal. It uses the SeznamBot robots.txt token. Some details are documented primarily in Czech, so this entry is marked partially verified pending confirmation in Seznam's own documentation.
- How to control YandexBot in robots.txt
YandexBot is the crawler for Yandex, a major search engine in Russia and nearby markets. You can target it in robots.txt with the YandexBot token. Yandex documents its robots.txt handling, has historically honoured crawl-delay, and provides additional crawl controls in Yandex.Webmaster.
- User-agent groups and matching in robots.txt
robots.txt rules are organised into user-agent groups. A crawler does not combine every group — it selects the single most specific group whose token matches its name, falling back to the * group only when no named group matches. Understanding this prevents rules that never apply.
- Web crawler encyclopedia
Reference for regional search crawlers like SeznamBot.
Sources and verification notes
- Seznam — SeznamBot documentationOfficial SeznamBot crawler help and token reference.
Last reviewed 2026-06-24. Facts are checked against primary/official sources where available; uncertain specifics are marked “Data not yet verified” rather than guessed.