Operator
Seoptimer
Seoptimer runs 2 bots across 2 agent types. Each one is a separate user-agent so you can allow or block them independently.
Bot
MBCrawlerSEO Crawler · Intel + audit
SEO Crawler
Intel + audit
MBCrawler is operated by Seoptimer. Maps link graphs, ranking signals, and audit data for SEO tooling. Typically run by SaaS platforms on behalf of marketers monitoring their own or competitor sites.
Monitor BacklinksGeneric Crawler · General
Generic Crawler
General
Monitor Backlinks is operated by Seoptimer. Generic programmatic data extraction with intent that varies case-by-case. Worth checking the operator before blocking, some are legitimate research, some are abusive.