Discuz！ Plug in extreme external chain reminding Seo sharp weapon

For the webmaster, the internal and external links of the website are a headache. A large number of external links in the website will significantly reduce the weight of the site. This plug-in is a plug-in function developed for the external links of the site: 1

Lao Li next door Six years ago one thousand nine hundred and thirty-three zero

#Outer chain #seo