Dlc

What is Dlc?

About

Dlc is the web crawler for Dr. Link Check service that automatically scans websites to identify broken links, malicious links, and other link-related issues, helping website owners maintain link integrity and SEO performance. You can see how often Dlc visits your website by setting up Dark Visitors agent analytics.

Expected Behavior

Developer helpers generally visit websites on direct behalf of a user who is evaluating some feature or attribute. Visits can be one-off or part of a larger crawl.

Type

Developer Helper
Used by developers to test website functionality

Detail

Operated By Dr. Link Check
Last Updated 5 hours ago

Insights

Top Website Robots.txts

0%
0% of top websites are blocking Dlc
Learn How →

Country of Origin

Japan
Dlc normally visits from Japan

Global Traffic

See All Global Bot & LLM Insights →

The percentage of all internet traffic coming from Developer Helpers

Top Visited Website Categories

Books and Literature
Jobs and Education
Arts and Entertainment
Law and Government
Home and Garden
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Robots.txt

Should I Block Dlc?

Probably not. Developer helpers are normally used to optimize or find problems with your website.

How Do I Block Dlc?

⚠️ Manual Robots.txt Edits Are Not Scalable
New agents are created every day. Instead, serve a continuously updating robots.txt that blocks new agents automatically.
Set Up Automatic Robots.txt

You can block Dlc or limit its access by setting user agent token rules in your website's robots.txt. Set up Dark Visitors agent analytics to check whether it's actually following them.

User Agent String Y!J-DLC/1.0 (https://support.yahoo-net.jp/PccSearch/s/article/H000007955) 
# robots.txt
# This should block Dlc

User-agent: Dlc
Disallow: /

References