What is Adyen?

Adyen is a bot in the webhook senders category, operated by Adyen.

Bot name
Adyen
Operator
Adyen
Type
Bot
Respects robots.txt
Not confirmed
robots.txt user agent
Adyen
Signs requests (Web Bot Auth)
No

About Adyen

The Adyen webhooks integration sends HTTP requests to inform web servers about payment-related events.

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.

Adyen user agent

Adyen identifies itself with this user agent string:

  • Adyen HttpClient 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 Adyen in robots.txt

We have not confirmed whether Adyen 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 Adyen from the whole site

User-agent: Adyen
Disallow: /

Block Adyen from some folders

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

Allow Adyen only on some folders

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

Allow Adyen and block other crawlers

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

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

Who should care about Adyen

Publishers

Allow Adyen 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

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

Transfon Security for advertisers

E-commerce

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

Transfon Security for e-commerce

SaaS and APIs

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

Transfon Security for SaaS and APIs

Block Adyen with Transfon Security

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

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

Frequently asked questions

What is Adyen?

Adyen is a bot in the webhook senders category, operated by Adyen. The Adyen webhooks integration sends HTTP requests to inform web servers about payment-related events.

Does Adyen respect robots.txt?

We have not confirmed whether Adyen 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 Adyen?

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

Is robots.txt enough to block Adyen?

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

Should I block Adyen?

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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