What is WMFZoteroTranslationServer?

WMFZoteroTranslationServer is a bot in the link preview bots category, operated by Wikimedia Foundation.

Bot name
WMFZoteroTranslationServer
Operator
Wikimedia Foundation
Type
Bot
Respects robots.txt
Not confirmed
robots.txt user agent
ZoteroTranslationServer
Signs requests (Web Bot Auth)
No

About WMFZoteroTranslationServer

The Wikimedia Foundation's Zotero Translation Server is a customized metadata extraction tool that powers Citoid (see wikimedia-citoid), retrieving citation data from URLs, DOIs, and ISBNs using Zotero translators, on demand from website visitor requests.

Link preview bots fetch a page when someone shares its URL in a chat app or social network, to build the preview card. Blocking them breaks your link previews, so keep them allowed but leave them out of analytics and ad requests.

WMFZoteroTranslationServer user agent

WMFZoteroTranslationServer identifies itself with this user agent string:

  • Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36 ZoteroTranslationServer/WMF (mailto:[email protected])

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 WMFZoteroTranslationServer in robots.txt

We have not confirmed whether WMFZoteroTranslationServer 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 WMFZoteroTranslationServer from the whole site

User-agent: ZoteroTranslationServer
Disallow: /

Block WMFZoteroTranslationServer from some folders

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

Allow WMFZoteroTranslationServer only on some folders

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

Allow WMFZoteroTranslationServer and block other crawlers

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

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

Who should care about WMFZoteroTranslationServer

Publishers

WMFZoteroTranslationServer fetches pages when your links are shared or syndicated. Keep it allowed so previews and feeds work, but leave it out of page views and ad requests.

Transfon Security for publishers

Media buyers and advertisers

When ads or posts are shared, WMFZoteroTranslationServer fetches the landing page. Those hits are not clicks, so keep them out of campaign reports.

Transfon Security for advertisers

E-commerce

Product links shared in chats and feeds are fetched by WMFZoteroTranslationServer. Keep it allowed so previews show the right image and price.

Transfon Security for e-commerce

SaaS and APIs

Allow WMFZoteroTranslationServer on public pages so shared links preview well, and keep it off the app.

Transfon Security for SaaS and APIs

Block WMFZoteroTranslationServer with Transfon Security

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

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

Frequently asked questions

What is WMFZoteroTranslationServer?

WMFZoteroTranslationServer is a bot in the link preview bots category, operated by Wikimedia Foundation. The Wikimedia Foundation's Zotero Translation Server is a customized metadata extraction tool that powers Citoid (see wikimedia-citoid), retrieving citation data from URLs, DOIs, and ISBNs using Zotero translators, on demand from website visitor requests.

Does WMFZoteroTranslationServer respect robots.txt?

We have not confirmed whether WMFZoteroTranslationServer 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 WMFZoteroTranslationServer?

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

Is robots.txt enough to block WMFZoteroTranslationServer?

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

Should I block WMFZoteroTranslationServer?

Link preview bots fetch a page when someone shares its URL in a chat app or social network, to build the preview card. Blocking them breaks your link previews, so keep them allowed but leave them out of analytics and ad requests.

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