Search engines give every site a limited crawl budget, and wasted crawls on error pages or parameter traps mean your important pages get visited less often. The Crawl Efficiency Analyzer shows where the budget actually goes: which pages hog the crawls, which return errors, and which are starved of attention.

Paste rows from your crawl stats or log export - one page per line in the format URL | number of crawls | HTTP status - and click Analyze. You get an efficiency score, a distribution table across crawl-frequency buckets, the share of budget burned on 4xx and 5xx responses, and a prioritised fix list covering hogs, error waste and starved pages.