How it works, what you get, limits
できること
Paste page source and check title, canonical and OG for missing or conflicting tags.
使い方
Paste HTML or a head fragment. Do not enter only a URL for this page to fetch.
得られるもの
A field list. It does not know if production is updated, and it will not run pasted scripts.
パラメータと比較
Pasted HTML.
Offline check, not a crawler.
制限
No URL fetch. Scripts in the paste are not executed.
FAQ
URL only?
No. Paste HTML or a head fragment. This page does not fetch.
Are pasted scripts run?
No.