Bot intelligence record
YandexAdditional
Review firstYandexAdditional is a search crawler from Yandex used for search indexing, URL discovery, page rendering, result freshness; it appears in server logs as `YandexAdditional`.
User-Agent Pattern
YandexYandexAdditional
User-agent strings are identification signals, not proof of identity. Confirm important allow, block, or rate-limit decisions with logs, DNS or IP evidence, request behavior, or operator documentation when available.
Robots.txt Snippet
Click snippet to copyUser-agent: YandexAdditional
Disallow: /Click the snippet to copy it, or highlight the text manually.
Handling Guidance
DependsUse this record as bot intelligence, then verify the request source and behavior before allowing, blocking, or rate limiting.
YandexAdditional is used for search indexing, URL discovery, page rendering, result freshness, and search-quality checks.
Record Details
Structured data- Operator
- Yandex
- Family
- Yandex
- Type
- Search
- Purpose
- Indexing
- Identity type
- Official Documented
- Confidence
- High
- Last verified
- 2026-06-23
- Last checked
- 2026-06-23
- Source type
- Official
- Verification
- Verify YandexAdditional by matching `YandexAdditional` to Yandex evidence, then checking reverse DNS, source-network ownership, signed request data, or published crawler documentation when available.
- Spoofing risk
- YandexAdditional has medium spoofing risk because the user-agent can be copied, even when the bot has strong source or documentation support.
Notes
- YandexAdditional is a search crawler from Yandex used for search indexing, URL discovery, page rendering, result freshness, and search-quality checks.
- Its primary user-agent pattern is
YandexAdditional; related patterns includeYandexAdditional Yandex robot; a representative HTTP user-agent isMozilla/5.0 (compatible; YandexAdditional/1.0; +http://yandex.com/bots). - YandexAdditional is verified with High confidence. The identity type is Official Documented, and the evidence basis is official operator documentation.
- YandexAdditional is marked as respecting robots.txt directives for crawler access control.
- YandexAdditional should be reviewed against site policy, source evidence, crawl rate, and requested paths before a permanent allow or block rule is created.
Evidence and Source
- Verify YandexAdditional by matching `YandexAdditional` to Yandex evidence, then checking reverse DNS, source-network ownership, signed request data, or published crawler documentation when available.
- YandexAdditional traffic is primarily detected by the `YandexAdditional` user-agent pattern; related patterns include `YandexAdditional Yandex robot`; a representative HTTP user-agent is `Mozilla/5.0 (compatible; YandexAdditional/1.0; +http://yandex.com/bots)`. Compare source IPs, reverse DNS, request paths, and crawl cadence with Yandex infrastructure before trusting the traffic.
- YandexAdditional is used for search indexing, URL discovery, page rendering, result freshness, and search-quality checks.
- YandexAdditional has medium spoofing risk because the user-agent can be copied, even when the bot has strong source or documentation support.
https://yandex.com/support/webmaster/en/robot-workings/check-yandex-robots
Monitor This Bot In Edge
Botcrawl EdgeUse Botcrawl Edge to see matching traffic, create allow or block rules, and control this bot across connected sites.