24 websites carry this Bing site verification in its source code@if (Model.Total > IdentifierModel.MaxSites) { ; the 200 highest-ranked are listed }. The msvalidate.01 meta tag: a Bing Webmaster Tools owner.
Which websites use the Bing site verification F78FDE34B140C0202E8BDA9A249EE311?
The 24 sites listed on this page: each has the id in its stored HTML or first-party JavaScript. The msvalidate.01 meta tag: a Bing Webmaster Tools owner; sites sharing one are usually run by the same owner, agency or platform.
How was F78FDE34B140C0202E8BDA9A249EE311 found?
By reading the stored source. PageSourceSearch keeps the exact bytes of the pages and scripts it crawls and extracts the identifier from the tag's own snippet or meta tag, so every listed site can be opened at the line that carries it.