This question, Search doesn't work well with URLs, is about searching for posts with links to
http://www.joelonsoftware.com/items/2007/10/26.html, and includes that link as plain text in the question (which is then auto-linkified).
Thus, if we search for posts with that link here on Meta, that post should come up.
Actual results vary.
- naive -
http://www.joelonsoftware.com/items/2007/10/26.html- 0 results
- quotes -
"http://www.joelonsoftware.com/items/2007/10/26.html"- 1 result
- url search -
url:http://www.joelonsoftware.com/items/2007/10/26.html- 0 results
- url w/quotes -
url:"http://www.joelonsoftware.com/items/2007/10/26.html"- 2 results
- url no protocol -
url:www.joelonsoftware.com/items/2007/10/26.html- 0 results
- url no protocol quoted -
url:"www.joelonsoftware.com/items/2007/10/26.html"- 0 results
- url w/wildcard -
url:*.joelonsoftware.com/items/2007/10/26.html- 0 results
- url w/wildcard quoted -
url:"*.joelonsoftware.com/items/2007/10/26.html"- 3 results
(Some or all of these searches will presumably have their results changed once this post is indexed, but the results should be reproducible with any other link.)
This answer, which also includes that exact text as the title of a link (but not the link target), is never found with any of these searches.
The search FAQ entry doesn't have any tips about these differing behaviors, and the advanced search tips just offers the terse
url:"*.example.com" with no further explanation of the ins and outs.
I'm sure that there's some rhyme or reason to explain all this, but either the
url: search restriction needs to be documented a lot better or the behavior fixed to be more intuitive (or both!).
Google is useless in this instance because real results are overwhelmed by spurious results for question list pages (which is a separate problem).