Pages in more than one sitemap
OpportunityLow priority
Addresses listed by more than one of the crawl's sitemaps.
Why it matters
It does no harm on its own, but usually means sitemaps generated separately that disagree about what belongs where.
How to fix it
List each address in one sitemap.
Skitter runs this check on every crawl, and lists each page it finds with the evidence: the header, the tag or the link that gave it away.