What is Dr. Link Check?
Direct Answer: Dr. Link Check is a monitoring bot operated by Dr. Link Check that crawls websites to identify and fix broken links.
Dr. Link Check is a web crawler designed to help website owners detect and repair broken links. It examines HTML, CSS code, and other resource files, checking internal and outbound links. The bot performs multiple checks on each link, including broken link checks, blacklist checks, and soft error checks.
User-Agent Identification
The following user-agent strings identify Dr. Link Check in your live traffic data:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.127 Safari/537.36 Dlc/2.0.1
robots.txt Rules for Dr. Link Check
Respects robots.txt: No
This bot does not commit to following robots.txt
Dr. Link Check does not officially follow robots.txt directives. The only reliable way to control access is through server-side blocking (IP filtering, user-agent rules in your web server config) combined with log monitoring to verify effectiveness.
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Crawl Behavior
Frequency:On-Demand Or Scheduled (Monthly, Weekly, Daily)
Request Pattern:Crawls Through HTML And CSS Code, Examining Internal And Outbound Links, As Well As Links To Images, Style Sheets, And Other Resource Files.
Crawl Activity Index
Relative crawl activity for Dr. Link Check 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 | 88.9 |
Source: Cloudflare Radar
Why track Dr. Link Check traffic?
Distinguish monitoring traffic from real crawler activity. Dr. Link Check checks your site availability at regular intervals. Without proper identification, these requests can inflate your bot traffic metrics and distort crawl analysis.
Validate monitoring coverage. Track which pages Dr. Link Check checks and how frequently, so your monitoring setup matches your infrastructure requirements.
Log Verification
To verify Dr. Link Check traffic in your live traffic data:
- Search access logs for the user-agent strings listed above
- Check if the IP addresses match documented ranges (if provided by Dr. Link Check)
- Verify the crawl pattern matches documented behavior
- Use reverse DNS lookup for additional verification if available
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 Dr. Link Check:
- user-agent details
- crawl delay
- IP verification method
Official Documentation
View Official Dr. Link Check Documentation →
Information sourced from official documentation. Content generated with AI assistance.