Two days ago Google Sitemaps was down just serving 502 Server Error. Reason : it was SlashDotted.

hat’s funny, Joey! As soon as you said that, I told myself–“it must have gotten Slashdotted.” Sure enough, it’s the top story on http://slashdot.org/ right now. The info about Sitemaps may be running on a “normal” webserver instead of our custom setup. I’d wait for the stampede-o-technical-folks to subside; maybe read the Slashdot thread or give it a few minutes up to a half hour for the geek-slagging to stop.

I alerted the Sitemaps team, but a Slashdotting is hard enough for a regular webserver, let alone one that’s doing https. I’d give it a few minutes.

Source : Search Engine Roundtable