A list of potentially useful bookmarklets
javascript:location.href='http://cssstats.com/stats?url='+window.location.href
javascript:location.href='https://mxtoolbox.com/SuperTool.aspx?action=a%3a'+window.location.hostname+'&run=toolpage'
javascript:location.href='https://developers.google.com/speed/pagespeed/insights/?url='+window.location.href
javascript:location.href='http://www.responsinator.com/?url='+window.location.href
javascript:location.href='https://search.google.com/structured-data/testing-tool#url='+window.location.href
javascript:location.href='http://web.archive.org/web/*/'+window.location.href