Meta tags:

Headings (most frequently used words):

404,

Text of the page (most frequently used words):
the (5), file (4), github (3), not (3), for (2), pages (2), this (2), site (2), found (2), githubstatus, status, more, information, about, using, read, full, documentation, your, make, sure, that, filename, case, matches, url, well, any, permissions, root, urls, like, you, must, provide, index, html, http, example, com, configured, address, does, contain, requested, 404, page,

Text of the page (random words):
page not found github pages 404 file not found the site configured at this address does not contain the requested file if this is your site make sure that the filename case matches the url as well as any file permissions for root urls like http example com you must provide an index html file read the full documentation for more information about using github pages github status githubstatus