Overview
Yahoo MMCrawler is a search crawler from Yahoo used for search indexing, URL discovery, page rendering, result freshness, and search-quality checks.
Its primary user-agent pattern is Yahoo-MMCrawler; related patterns include yahoo-mmcrawler; Yahoo multimedia crawler.
Yahoo MMCrawler is not independently verified with Medium confidence. The identity type is Documented, and the evidence basis is observed traffic patterns and user-agent evidence.
Robots.txt behavior is not currently confirmed.
Yahoo MMCrawler should be reviewed against site policy, source evidence, crawl rate, and requested paths before a permanent allow or block rule is created.
Identity
- User-Agent Pattern
-
Yahoo-MMCrawler - Aliases
- yahoo-mmcrawler; Yahoo multimedia crawler
- HTTP Agent Examples
-
Yahoo-MMCrawler - Robots Token
- Yahoo-MMCrawler
- Identity Type
- Documented
- Evidence Method
- Verify Yahoo MMCrawler by matching `Yahoo-MMCrawler` to Yahoo evidence, then checking reverse DNS, source-network ownership, signed request data, or published crawler documentation when available.
Classification
- Type
- Search engine crawler
- Kind
- Search engine crawler
- Family
- Yahoo
- Purpose
- Media indexing
Behavior and handling
- Common Use
- Yahoo MMCrawler is used for search indexing, URL discovery, page rendering, result freshness, and search-quality checks.
- Detection Notes
- Yahoo MMCrawler traffic is primarily detected by the `Yahoo-MMCrawler` user-agent pattern; related patterns include `yahoo-mmcrawler; Yahoo multimedia crawler`. Compare source IPs, reverse DNS, request paths, and crawl cadence with Yahoo infrastructure before trusting the traffic.
- Respects robots.txt
- Unknown
- Spoofing Risk
- Yahoo MMCrawler has medium spoofing risk because user-agent strings can be copied; pair the match with DNS, IP, behavior, or operator evidence.
- Risk
- Neutral
- Recommended Handling
- Depends
Rules and controls
- Robots.txt Snippet
-
# Legacy or noncanonical identity. Confirm the current canonical token before relying on robots.txt.
Relationships
- Operator
- Yahoo Checked 2026-06-22
Relationships without an Evidence link are normalized from the canonical directory record. They should not be interpreted as independent proof of physical presence or request origin.