Forum Moderators: Robert Charlton & goodroi
On googling mysitename:80 I found that Google is indexing Alexa serps.
a) Won't that trigger a dupe content penalty?
b) How come Google is indexing another search engine's serps?
Won't that trigger a dupe content penalty?
As far as I'm aware, port 80 will never show in Google serps, since it's the default port for http requests. Port numbers are only visible if they deviate from the norm. Example.com:80 is exactly the same as example.com. In a similar way, your browser simply hides :80 from the address bar as a convenience to you.
How come Google is indexing another search engine's serps?
If it's a valid URL, Google will have no problem indexing it. Most search engines block indexing of search results via robots exclusion, which seems to be widely considered as best practice.
Accordingly the port number should not be be in a keywords listed on WMT right? It does.
Googleing "mysitename.com:80" returns Alexa pages with links that contain in both the anchor and the link to my site MySiteName:80 in them, also for every single other link on that Alexa page which lists all the sites linking to some other site.
Assuming that you redirect from non-www to www, your code should redirect all of example.com, example.com:80, example.com., example.com.:80, www.example.com:80, www.example.com., and www.example.com.:80 to www.example.com -- Anything except exactly "www.example.com" should be redirected to "www.example.com".
Sites which use or support https should also take care that each page is available using either http or https, and not both.
Jim