What is LinkCLI?

LinkCLI is an AI agent in the other bots category, operated by Link.

Bot name
LinkCLI
Operator
Link
Category
Other Bots
Type
AI agent
Respects robots.txt
Not confirmed
robots.txt user agent
LinkCLI
Signs requests (Web Bot Auth)
Yes

About LinkCLI

Link lets your agents spend on your behalf. Your payment credentials are never exposed. You approve every purchase.

Bots that do not fit the other categories. Review their purpose and allow only what you need.

LinkCLI user agent

Anyone can copy a user agent string. Transfon Security also checks where each request comes from, so a request that claims to be a known crawler but comes from the wrong network is treated as a fake, not as the real crawler.

How to block LinkCLI in robots.txt

We have not confirmed whether LinkCLI follows robots.txt. Add a rule, then check your logs to see that it stopped. robots.txt is a plain text file at the root of your domain, such as https://example.com/robots.txt.

Block LinkCLI from the whole site

User-agent: LinkCLI
Disallow: /

Block LinkCLI from some folders

User-agent: LinkCLI
Disallow: /private/
Disallow: /search

Allow LinkCLI only on some folders

User-agent: LinkCLI
Allow: /blog/
Disallow: /

Allow LinkCLI and block other crawlers

User-agent: LinkCLI
Allow: /

User-agent: *
Disallow: /

Things to know

  • Each host needs its own file. Rules on www.example.com do not apply to shop.example.com.
  • A crawler obeys only the most specific group that names it. Once you add a User-agent: LinkCLI group, LinkCLI ignores your User-agent: * rules, so repeat any that should still apply.
  • The user agent name is not case sensitive. We take LinkCLI from LinkCLI's user agent; check Link's own documentation if it publishes a different robots.txt name.
  • Crawlers cache robots.txt, so changes can take up to a day to apply. Disallow stops crawling but does not remove pages already collected or indexed.

Limits of robots.txt

  1. LinkCLI may not follow the rule. robots.txt is a request that nothing enforces, and we have not confirmed that LinkCLI follows it. Check your logs after adding a rule.
  2. The user agent could be fake. robots.txt matches the name a request claims. Anyone can send LinkCLI's user agent, and a scraper using it is not bound by Link's robots.txt policy. Only checking the source network tells a real LinkCLI from a fake one.

Treat robots.txt as a statement of your policy, and enforce it where requests arrive.

Who should care about LinkCLI

Publishers

Allow LinkCLI if it is a service you use, and keep its visits out of page views and ad requests either way.

Transfon Security for publishers

Media buyers and advertisers

LinkCLI is not a person. Exclude it from campaign and conversion data so reports reflect real visitors.

Transfon Security for advertisers

E-commerce

Allow LinkCLI only if it works for your store, and keep it away from cart and checkout.

Transfon Security for e-commerce

SaaS and APIs

If LinkCLI is a service you use, allow it on the endpoints it needs and block it elsewhere.

Transfon Security for SaaS and APIs

Block LinkCLI with Transfon Security

robots.txt is a request, not an enforcement. Transfon Security shows LinkCLI by name in the Top Bots report, so you can see how often it visits and which pages it reads. Block or allow it with a User Agent rule, or slow it down with a rate limit decision rule.

Transfon Security

Control LinkCLI on your site

  • See every LinkCLI visit and the pages it reads
  • Spot bots that fake trusted crawler names
  • Block, allow or rate limit LinkCLI with one rule
  • Works with or without robots.txt support

Frequently asked questions

What is LinkCLI?

LinkCLI is an AI agent in the other bots category, operated by Link. Link lets your agents spend on your behalf. Your payment credentials are never exposed. You approve every purchase.

Does LinkCLI respect robots.txt?

We have not confirmed whether LinkCLI follows robots.txt. Add a robots.txt rule, then check your logs to see that it stopped, and block it by user agent if it did not.

How do I block LinkCLI?

Add "User-agent: LinkCLI" followed by "Disallow: /" to the robots.txt file at the root of your site. To enforce it, block requests whose user agent contains "LinkCLI" at your WAF. In Transfon Security that is one User Agent block rule.

Is robots.txt enough to block LinkCLI?

No. robots.txt is voluntary, so LinkCLI may not follow it, and anyone can send LinkCLI's user agent, so a fake LinkCLI ignores your rule. Enforce the rule where requests arrive, at your WAF, and check the source network.

Should I block LinkCLI?

Bots that do not fit the other categories. Review their purpose and allow only what you need.

Related bots

All other bots · Full bot directory

See Which Bots Visit Your Site

Transfon Security identifies every bot in this directory in your traffic reports, flags fake search crawlers, and lets you allow, block or rate limit each bot.

Stay ahead of the publishing curve

Privacy, security, monetization, and performance insights. A few emails a month, no spam.

By subscribing you agree to our privacy policy.