What is Qcbot?

Qcbot is a bot in the monitoring and analytics bots category, operated by QUIC Cloud Inc..

Bot name
Qcbot
Operator
QUIC Cloud Inc.
Type
Bot
Respects robots.txt
Yes
robots.txt user agent
qcbot
Signs requests (Web Bot Auth)
No

About Qcbot

qcbot is the web crawler for QUIC.cloud Onlin

Monitoring bots check uptime, performance and page changes on behalf of a site owner or a third party. Allow the services you run yourself and exclude them from analytics so they do not inflate page views.

Qcbot user agent

Sample user agent strings sent by Qcbot:

  • Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; qcbot/1.0; +http://quic.cloud/bot.html) Chrome/112.0.0.0 Safari/537.36
  • Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Mobile Safari/537.36 (compatible; qcbot/1.0; +http://quic.cloud/bot.html)

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 Qcbot in robots.txt

Qcbot follows robots.txt, so these rules stop it crawling the paths you choose. robots.txt is a plain text file at the root of your domain, such as https://example.com/robots.txt.

Block Qcbot from the whole site

User-agent: qcbot
Disallow: /

Block Qcbot from some folders

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

Allow Qcbot only on some folders

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

Allow Qcbot and block other crawlers

User-agent: qcbot
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: qcbot group, Qcbot ignores your User-agent: * rules, so repeat any that should still apply.
  • The user agent name is not case sensitive. We take qcbot from Qcbot's user agent; check QUIC Cloud Inc.'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. Qcbot may not follow the rule. Qcbot says it follows robots.txt, but nothing enforces that. Changes can take a day to apply, the operator can change its policy, and other crawlers from QUIC Cloud Inc. use different names and rules.
  2. The user agent could be fake. robots.txt matches the name a request claims. Anyone can send Qcbot's user agent, and a scraper using it is not bound by QUIC Cloud Inc.'s robots.txt policy. Only checking the source network tells a real Qcbot from a fake one.

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

Who should care about Qcbot

Publishers

Allow Qcbot 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

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

Transfon Security for advertisers

E-commerce

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

Transfon Security for e-commerce

SaaS and APIs

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

Transfon Security for SaaS and APIs

Block Qcbot with Transfon Security

robots.txt is a request, not an enforcement. Transfon Security shows Qcbot 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 Qcbot on your site

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

Frequently asked questions

What is Qcbot?

Qcbot is a bot in the monitoring and analytics bots category, operated by QUIC Cloud Inc.. qcbot is the web crawler for QUIC.cloud Onlin

Does Qcbot respect robots.txt?

Yes. Qcbot follows robots.txt, so a Disallow rule for the qcbot user agent stops it from crawling the paths you list.

How do I block Qcbot?

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

Is robots.txt enough to block Qcbot?

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

Should I block Qcbot?

Monitoring bots check uptime, performance and page changes on behalf of a site owner or a third party. Allow the services you run yourself and exclude them from analytics so they do not inflate page views.

Related bots

All monitoring and analytics 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.

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