SEO helper shows wether the current page can be indexed by Google or not and wether links will be follow or not.
release log:
v2.0 now with several new features like including status codes, redirects, robots.txt and canonical
v1.3 several bugfixes (including meta tag in body)
v1.2 now accounts for uppercase
谷歌浏览器、其他Chromium内核的浏览器