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Can AI see it

Know what AI sees. Measure what it's worth.

What is LinkChecker Bot?

Direct Answer: LinkChecker Bot is a web crawler operated by LinkChecker that monitors backlinks profiles.

Operator: LinkChecker Type: SEO Tool Purpose: SEO backlink analysis and site auditing

LinkCheckerBot is a web crawler that monitors the backlinks profile of users. It is operated by LinkChecker and identifies itself with the user-agent string Mozilla/5.0 (compatible; LinkCheckerBot/2.0; +https://linkchecker.pro/robot/). The bot respects robots.txt rules and crawl delay.

User-Agent Identification

The following user-agent strings identify LinkChecker Bot in your live traffic data:

  • Mozilla/5.0 (compatible; LinkCheckerBot/2.0; +https://linkchecker.pro/robot/)

robots.txt Rules for LinkChecker Bot

Respects robots.txt: Yes

Use the following robots.txt rules to control LinkChecker Bot access:

# Block LinkChecker Bot
User-agent: LinkCheckerBot
Disallow: /

# Allow LinkChecker Bot
User-agent: LinkCheckerBot
Allow: /

Robots.txt is a directive, not a barrier

LinkChecker states that LinkChecker Bot respects robots.txt. However, configuration mistakes, caching delays, and edge cases mean your directives may not always be followed as expected. Live traffic verification confirms whether LinkChecker Bot actually obeys your rules in practice.

Need continuous verification across 500+ bots? Can AI See It automates this.

Crawl Behavior

Frequency:On-Demand

Request Pattern:Not Documented

Official Documentation Quotes

"LinkCheckerBot is a Web Crawler that monitors backlinks of our users."

"LinkCheckerBot strictly respects robots.txt rules."

Crawl Activity Index

Relative crawl activity for LinkChecker Bot over the past 28 days. Higher values indicate increased crawling intensity compared to the period baseline.

View recent activity data (last 7 days)
Date Activity Index
Mar 26, 2026 88.0
Mar 27, 2026 82.7
Mar 28, 2026 83.1
Mar 29, 2026 81.8
Mar 30, 2026 87.3
Mar 31, 2026 90.2
Apr 1, 2026 88.8

Source: Cloudflare Radar

Why track LinkChecker Bot traffic?

Control third-party crawl impact on your server. LinkChecker Bot crawls your site to build LinkChecker's SEO database. While useful for competitive analysis, these crawlers can consume significant server resources on large sites.

Identify who's analyzing your site. LinkChecker Bot visits reveal when competitors or agencies are running audits on your domain.

Manage crawl priority. If LinkChecker Bot is consuming crawl budget you'd rather allocate to search engines, you can throttle or block it based on measured volume.

Surface 4XX and 5XX errors before search engines find them. If LinkChecker Bot reports broken pages or server errors in its crawl data, you can fix those issues proactively — before search engine crawlers encounter them and your rankings suffer.

Is LinkChecker Bot worth the server resources?

LinkChecker Bot crawls your site to build LinkChecker's SEO database. Unlike search engines, this crawler doesn't send you any referral traffic — it feeds a third-party tool.

That's not necessarily a problem — LinkChecker's data may power tools you use yourself. The question is whether LinkChecker Bot's crawl volume is proportionate to its value.

What Can AI See It measures

Crawl volume

Requests per day and bandwidth consumed by LinkChecker Bot

Resource share

What % of your total bot traffic is LinkChecker Bot?

Fake bot detection

Scrapers spoofing LinkChecker Bot's user-agent string

Log Verification

To verify LinkChecker Bot traffic in your live traffic data:

  1. Search access logs for the user-agent strings listed above
  2. Check if the IP addresses match documented ranges (if provided by LinkChecker)
  3. Verify the crawl pattern matches documented behavior
  4. Use reverse DNS lookup for additional verification if available

IP Verification: LinkChecker provides official IP verification via Published IP ranges. View verification instructions →

IP address ranges are published for verification

Note: Observed behavior in production environments may differ from official documentation. Live traffic monitoring provides the only reliable verification of actual bot behavior.

Undocumented Information

The following information is not officially documented for LinkChecker Bot:

  • crawl frequency pattern
  • JavaScript rendering details

See which SEO tools are crawling your site — and how much they cost you

  • Identify third-party crawlers consuming your server resources
  • Separate SEO tool traffic from search engine crawls
  • Detect fake bots spoofing LinkChecker Bot's user-agent
Start measuring for free → See how it works →

Official Documentation

View Official LinkChecker Bot Documentation →

Information sourced from official documentation. Content generated with AI assistance.