How do you resolve favicons? Browsers are very resilient at finding favicons. Websites can use meta refreshes, variants on <link rel="..."> tags, domain.com/favicon.{ico,png}, gzipped images, and inserting icon elements with javascript. You could also use parent domains if you don't have a favicon for a subdomain.
Writing your own favicon-getter is by contrast... kind of annoying.
Writing your own favicon-getter is by contrast... kind of annoying.