Search Engine Crawlers

YandexVertis user agent

Operated by Yandex

Search indexOfficial docs Allow

YandexVertis is the Yandex robot for search verticals.

The YandexVertis bot at a glance

  • YandexVertis is operated by Yandex and crawls web pages for a search engine index.
  • The robots.txt token for YandexVertis is YandexVertis.
  • Blocking a search engine crawler removes your pages from that search engine's results.
  • YandexVertis robots.txt support: Yes.
  • Recommendation for Generative Engine Optimization (GEO): Allow.

What is YandexVertis?

It collects content for specialised Yandex search sections.

Yandex lists this robot on its official page of Yandex robots.

Should you block YandexVertis?

Allow YandexVertis unless it causes a measurable load problem.

Effect on search rankingsBlocking a search engine crawler removes your pages from that search engine's results.
Effect on AI visibilityAI features built on that search index, such as Google AI Overviews and AI Mode on top of Googlebot, also lose access to your pages.
Follows robots.txtYes
RecommendationAllow

How to block or allow YandexVertis

Put the robots.txt rule in the file at the root of every domain and subdomain, for example https://example.com/robots.txt. The token YandexVertis is matched case-insensitively.

robots.txt: block

# Block YandexVertis
User-agent: YandexVertis
Disallow: /

robots.txt: allow

# Allow YandexVertis
User-agent: YandexVertis
Allow: /

robots.txt: partial

# Keep YandexVertis out of private areas only
User-agent: YandexVertis
Disallow: /wp-admin/
Disallow: /cart/
Disallow: /checkout/
Disallow: /my-account/
Allow: /

Nginx

# Nginx: return 403 to YandexVertis
if ($http_user_agent ~* "(YandexVertis)") {
    return 403;
}

Apache

# Apache .htaccess: return 403 to YandexVertis
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} (YandexVertis) [NC]
RewriteRule .* - [F,L]

Cloudflare WAF

# Cloudflare > Security > WAF > Custom rule, action: Block
(http.user_agent contains "YandexVertis")

How to verify real YandexVertis traffic

Reverse DNS check: look up the request IP, confirm the hostname ends in yandex.ru, yandex.net, yandex.com, then look up that hostname and confirm it returns the same IP.

# 1. Reverse lookup: the hostname must end in yandex.ru, yandex.net, yandex.com
host REQUEST_IP
# 2. Forward lookup: must return the same REQUEST_IP
host HOSTNAME_FROM_STEP_1

How to find YandexVertis in your server logs

Search the web server access log for the token. The command below counts YandexVertis requests per URL on Nginx or Apache.

grep -i "YandexVertis" access.log | awk '{print $7}' | sort | uniq -c | sort -rn | head -20

For a full report per AI bot, upload the log to the AI Log File Analyzer, a free tool by Justin Hà.

YandexVertis user agent string

The full user agent Yandex publishes for YandexVertis. Version numbers such as Chrome/W.X.Y.Z change over time, so match the token, not the whole string.

Mozilla/5.0 (compatible; YandexVertis/3.0; +http://yandex.com/bots)

YandexVertis FAQ

YandexVertis identifies itself with the robots.txt token "YandexVertis". A typical request header reads: Mozilla/5.0 (compatible; YandexVertis/3.0; +http://yandex.com/bots)

Yes. Yandex states that YandexVertis follows robots.txt rules written for the "YandexVertis" token.

Blocking a search engine crawler removes your pages from that search engine's results. AI features built on that search index, such as Google AI Overviews and AI Mode on top of Googlebot, also lose access to your pages.

Add two lines to the robots.txt file at the root of each domain and subdomain: "User-agent: YandexVertis" followed by "Disallow: /". The token is case-insensitive. Changes can take up to 24 hours to be picked up.

Yes. Run a reverse DNS lookup on the request IP; a real YandexVertis request resolves to yandex.ru, yandex.net, yandex.com, and a forward lookup of that hostname returns the same IP.

Search your server access log for "YandexVertis", for example with: grep -i "YandexVertis" access.log. The AI Log File Analyzer by Justin Hà counts visits per AI bot from an uploaded log file.

Sources: Yandex crawler documentation. Last reviewed by Justin Hà.

See which of these bots actually reach your website

The AI Log File Analyzer by Justin Hà counts visits from GPTBot, ClaudeBot, PerplexityBot and other AI crawlers in your server log, for free. The GEO Technical Package sets up robots.txt, llms.txt and crawler access for AI search.

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