Safe Official docs AI & LLM Bots

Hark Agent

Operated by Hark

Quick Facts

User-Agent:
HarkBot
Category:
AI & LLM Bots
Operator:
Hark
Safety:
Safe
Blocking Impact:
Low - No SEO ranking impact
SEO Impact Score:
2/10
Official docs:
app.hark.com

Confirmed by the operator

Hark names HarkBot on its own documentation page, linked above. The token, purpose and robots.txt behaviour on this profile come from that page, re-checked on September 22, 2026.

What is Hark Agent?

Hark Agent is an on-demand AI fetcher operated by Hark. It retrieves a page only when a user explicitly asks an AI assistant or agent to read, summarize, or act on a specific URL. Because it is triggered by real user intent rather than bulk crawling, blocking it mainly prevents users from pulling your content into Hark's assistant.

Hark Agent is an on-demand AI fetcher operated by Hark. It retrieves a page only when a user explicitly asks an AI assistant or agent to read, summarize, or act on a specific URL. Because it is triggered by real user intent rather than bulk crawling, blocking it mainly prevents users from pulling your content into Hark's assistant.
Hark Agent uses the user-agent token HarkBot. You can control it via robots.txt, meta tags (noai), or the emerging llms.txt standard. Robots.txt is voluntary; for hard enforcement, combine it with server-level IP blocking.

What happens if you block Hark Agent?

✅ No SEO Impact - Blocking Hark Agent does not affect your rankings in Google, Bing, or any other search engine. Hark Agent is an AI crawler, not a traditional search indexer. You can freely block it via User-agent / Disallow: / without any SEO penalty.
Generally safe to allow; provides legitimate crawling value.

Want to see whether Hark Agent actually visits you? Read how do I monitor AI bot traffic to my website?

How to block Hark Agent with robots.txt

<code>User-agent: HarkBot</code> - Matching is case-insensitive. Robots.txt is fetched from the root of each subdomain separately.

Block completely (robots.txt)
User-agent: HarkBot Disallow: /
Allow all (robots.txt)
User-agent: HarkBot Allow: /
Block private only (robots.txt)
User-agent: HarkBot Disallow: /private/ Disallow: /api/ Disallow: /admin/ Allow: /
Nginx server block
# Nginx: Hard-block Hark Agent if ($http_user_agent ~* "HarkBot") { return 403 "Bot blocked"; }
Apache .htaccess
# Apache: Hard-block Hark Agent SetEnvIfNoCase User-Agent "HarkBot" bad_bot Order Allow,Deny Allow from all Deny from env=bad_bot
Meta robots tag
<meta name="robots" content="noindex, nofollow">
X-Robots-Tag header
X-Robots-Tag: noindex, nofollow

Is Hark Agent safe to allow?

Yes, Hark Agent is a safe and legitimate crawler operated by Hark. It follows the Robots Exclusion Protocol (RFC 9309) and can be controlled with standard robots.txt rules.
Verify by reverse-DNS lookup: legitimate Hark Agent requests resolve to Hark's domain.

What does Hark Agent do?

Understanding Hark Agent's purpose helps you decide whether to allow or block it.

  • Fetches a page only when a user asks an AI assistant to read it
  • Summarizes or extracts the URL the user provided
  • Triggered by real user intent, not bulk crawling
  • Low traffic volume compared with training crawlers
  • Blocking it prevents users from pulling your content into the assistant

Frequently Asked Questions

What is the official user-agent string for Hark Agent?
The official user-agent string for Hark Agent is: HarkBot. Use this exact string in robots.txt, Nginx, Apache, or Cloudflare firewall rules to target this bot. Matching in robots.txt is case-insensitive. Verify a request genuinely comes from Hark Agent by performing a reverse-DNS lookup on the source IP.
Is Hark Agent safe?
Yes, Hark Agent is a safe and legitimate crawler operated by Hark. It follows the Robots Exclusion Protocol (RFC 9309) and can be controlled with standard robots.txt rules.
Will blocking Hark Agent hurt my SEO?
✅ No SEO Impact - Blocking Hark Agent does not affect your rankings in Google, Bing, or any other search engine. Hark Agent is an AI crawler, not a traditional search indexer. You can freely block it via User-agent / Disallow: / without any SEO penalty.
How do I block Hark Agent in robots.txt?
Add the following lines to your /robots.txt file:
User-agent: HarkBot
Disallow: /

This instructs Hark Agent not to crawl any path on your site. To block only specific sections, replace / with the path (e.g., Disallow: /blog/).
Does Hark Agent respect robots.txt?
Hark Agent is operated by Hark and is expected to fetch and parse /robots.txt before crawling, following RFC 9309. For hard enforcement, combine robots.txt with server-level IP or user-agent blocking.
How do I verify if Hark Agent is crawling my site?
Search your web server access logs for the string HarkBot (case-insensitive: grep -i "HarkBot" /var/log/nginx/access.log). Filter by user-agent in your log analytics tool (GoAccess, AWStats, etc.).

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