PublicWWW - search in HTML source codes

[Ivenco]

Service for searching signatures in source HTML-codes of webpages. In tags, javascripts, comments, etc... For example it is possible to find websites with adsense-id, analytics-id, powered by cms, using themes, designs. Any text is available for search.

https://publicwww.com/

150 millions websites in index now (almost whole Internet).
Search in top 1 million available for free (after signup).