Query parameters in the address
OpportunityLow priority
Addresses of this site that carry a query string.
Why it matters
Parameters multiply: each combination is another address for the same content, and a crawl — ours or a search engine's — spends its budget on the copies.
How to fix it
Serve the content at a plain path where you can, and where you cannot, canonicalise the parameterised addresses to it.
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.