What is MollieBot?

MollieBot is a bot in the webhook senders category, operated by Mollie B.V..

Bot name
MollieBot
Operator
Mollie B.V.
Type
Bot
Respects robots.txt
Not confirmed
robots.txt user agent
Mollie
Signs requests (Web Bot Auth)
No

About MollieBot

Mollie B.V. is a payment service provider. We use webhooks to notify our merchants about updates to their payments.

Webhook senders call your endpoints to deliver events from payment, messaging and SaaS platforms. Blocking them breaks integrations. Allow them on the webhook paths they need and nowhere else.

MollieBot user agent

MollieBot identifies itself with this user agent string:

  • Mollie HTTP client/1.0

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 MollieBot in robots.txt

We have not confirmed whether MollieBot 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 MollieBot from the whole site

User-agent: Mollie
Disallow: /

Block MollieBot from some folders

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

Allow MollieBot only on some folders

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

Allow MollieBot and block other crawlers

User-agent: Mollie
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: Mollie group, MollieBot ignores your User-agent: * rules, so repeat any that should still apply.
  • The user agent name is not case sensitive. We take Mollie from MollieBot's user agent; check Mollie B.V.'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. MollieBot may not follow the rule. robots.txt is a request that nothing enforces, and we have not confirmed that MollieBot 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 MollieBot's user agent, and a scraper using it is not bound by Mollie B.V.'s robots.txt policy. Only checking the source network tells a real MollieBot from a fake one.

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

Who should care about MollieBot

Publishers

Allow MollieBot 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

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

Transfon Security for advertisers

E-commerce

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

Transfon Security for e-commerce

SaaS and APIs

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

Transfon Security for SaaS and APIs

Block MollieBot with Transfon Security

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

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

Frequently asked questions

What is MollieBot?

MollieBot is a bot in the webhook senders category, operated by Mollie B.V.. Mollie B.V. is a payment service provider. We use webhooks to notify our merchants about updates to their payments.

Does MollieBot respect robots.txt?

We have not confirmed whether MollieBot 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 MollieBot?

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

Is robots.txt enough to block MollieBot?

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

Should I block MollieBot?

Webhook senders call your endpoints to deliver events from payment, messaging and SaaS platforms. Blocking them breaks integrations. Allow them on the webhook paths they need and nowhere else.

Related bots

All webhook senders · 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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