Caution Data Scrapers

CCBot

Operated by Common Crawl

Quick Facts

User-Agent:
CCBot
Category:
Data Scrapers
Operator:
Common Crawl
Safety:
Caution
Blocking Impact:
Low - No SEO ranking impact
SEO Impact Score:
2/10
Official docs:
commoncrawl.org

What is CCBot?

CCBot is the crawler for Common Crawl, a non-profit that scrapes the web to provide open datasets. While useful for research, it consumes significant bandwidth.

CCBot is the crawler for Common Crawl, a non-profit that scrapes the web to provide open datasets. While useful for research, it consumes significant bandwidth. CCBot is a data aggregation crawler. Unlike search bots or AI crawlers, its purpose is typically to collect content for private datasets, price monitoring, or research. Blocking CCBot via robots.txt or at the server level has NO negative SEO impact. If you see excessive crawl volume from this bot in your logs, a hard block is recommended.

What happens if you block CCBot?

✅ **Minimal Impact** - Blocking CCBot has no meaningful effect on your search engine rankings or organic traffic.
Consider blocking based on your content strategy.

How to block CCBot with robots.txt

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

Block completely (robots.txt)
User-agent: CCBot Disallow: /
Allow all (robots.txt)
User-agent: CCBot Allow: /
Block private only (robots.txt)
User-agent: CCBot Disallow: /private/ Disallow: /api/ Disallow: /admin/ Allow: /
Nginx server block
# Nginx: Hard-block CCBot if ($http_user_agent ~* "CCBot") { return 403 "Bot blocked"; }
Apache .htaccess
# Apache: Hard-block CCBot SetEnvIfNoCase User-Agent "CCBot" 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 CCBot safe to allow?

⚠️ **Use Caution with CCBot.** While operated by Common Crawl for stated legitimate purposes, this bot collects your content for uses you may not want to support (commercial data aggregation). It generally respects robots.txt but may revisit pages more frequently than needed. Evaluate your content strategy: if you're concerned about your data being used for these purposes, block it.

What does CCBot do?

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

  • Extracts content, prices, or data from websites
  • May be used for competitive intelligence
  • Often operates without explicit permission
  • Can increase server load and bandwidth usage
  • May violate terms of service or copyright

Frequently Asked Questions

What is the official user-agent string for CCBot?
The official user-agent string for CCBot is: CCBot. This is the exact string you must use in robots.txt, Nginx, Apache, or Cloudflare firewall rules to target this bot. User-agent matching in robots.txt is case-insensitive, but the string must be spelled correctly. You can verify that a request genuinely comes from CCBot by performing a reverse-DNS lookup on the source IP - legitimate bots resolve back to their operator's domain.
Is CCBot safe?
⚠️ **Use Caution with CCBot.** While operated by Common Crawl for stated legitimate purposes, this bot collects your content for uses you may not want to support (commercial data aggregation). It generally respects robots.txt but may revisit pages more frequently than needed. Evaluate your content strategy: if you're concerned about your data being used for these purposes, block it.
Will blocking CCBot hurt my SEO?
✅ **Minimal Impact** - Blocking CCBot has no meaningful effect on your search engine rankings or organic traffic.
How do I block CCBot in robots.txt?
Add the following lines to your /robots.txt file: 
User-agent: CCBot
Disallow: /
This instructs CCBot not to crawl any path on your site. The Disallow: / directive covers the entire domain including subfolders. To only block specific sections, replace / with the path (e.g., Disallow: /blog/). Note: robots.txt is publicly readable - any bot or human can inspect it at yourdomain.com/robots.txt.
Does CCBot respect robots.txt?
⚠️ CCBot may not always respect robots.txt. For guaranteed blocking, combine robots.txt with server-level rules (Nginx if/return 403, Apache SetEnvIf, or Cloudflare WAF).
How do I verify if CCBot is crawling my site?
Search your web server access logs for the string CCBot (case-insensitive grep: grep -i "CCBot" /var/log/nginx/access.log). You can also check Google Search Console → Coverage → Crawl Stats for Googlebot variants. For CCBot specifically, filter by user-agent in your log analysis tool (GoAccess, AWStats, etc.).
What is the crawl frequency of CCBot?
Crawl frequency data for CCBot is not publicly documented. Monitor your logs to understand actual visit patterns.
Can I block CCBot from specific pages only?
Yes. Instead of a global Disallow: / you can restrict CCBot to specific paths: 
User-agent: CCBot
Disallow: /private/
Disallow: /staging/
Allow: /
This allows CCBot everywhere except the listed paths. Path matching in robots.txt uses prefix matching - Disallow: /private/ blocks /private/page.html but NOT /public/private/.
Is CCBot causing high server load?
If CCBot is generating excessive requests, you can: 1. Add Crawl-delay: 30 below the User-agent directive in robots.txt. 2. Rate-limit the user-agent via Nginx's limit_req_zone or Apache's mod_ratelimit. 3. Block it outright at Cloudflare WAF with rule: http.user_agent contains "CCBot". 4. Use fail2ban to auto-block IPs exceeding request thresholds.

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