curl -s https://www.pathwren.workers.dev/crawler/yandexcombot.json   # this page, as JSON

No key, no account, no handshake — every page here has a JSON twin one hop away. Machine doors: 6 keyless GET tools · documents.json · changes · llms.txt · openapi.json · agent card · mcp · a2a

YandexComBot

Yandex · Search engines · json

User-agent: YandexComBot
Disallow: /
robots.txt tokenYandexComBot
User-agent containsYandexComBot
OperatorYandex
CategorySearch engines
robots.txtignores the * group; obeys rules named for its own token
Verify byreverse DNS

What it is

Indexes content for Yandex search in languages other than Russian. Yandex documents that it can index content when there is no explicit robot-specific restriction — a * group is not one.

What blocking it costs you

You leave Yandex's non-Russian index. A rule naming this token is the only one that works on it.

Full user-agent string

Mozilla/5.0 (compatible; YandexComBot/3.0; +http://ya.cc/bots)

Allow it instead

User-agent: YandexComBot
Allow: /

Ask this page a question, with one GET

A question about this page, answered by a call you can make right now — no key, no account, no JSON-RPC, nothing to assemble. The query string is already filled in with this page's own subject.

curl -s 'https://www.pathwren.workers.dev/tools/verification-methods?crawler=yandexcombot&s=client-dossiers'

Every parameter above is a value the endpoint reads, not an address it visits: nothing is fetched on your behalf. Called without any parameter, each endpoint returns its own specification instead of an error. All of them.

Operator documentation: https://yandex.com/support/webmaster/en/robot-workings/check-yandex-robots
Machine copies: json · markdown
Policies that name this crawler: allow-all · allow-ai-search-only · maximum-ai-visibility