I got a bunch of these in my web server log. I'm only allowed to post one link, but besides 995 I got similar entries for 110 and 143. Basically email ports. The link is exact except where I replaced my IP address with the phrase "MYIPADDRESS". So is this some sort of google dorking search? The IP does go back to Google.
444 64.9.240.132 - - [12/Mar/2017:00:35:40 +0000] "GET /:995 HTTP/1.1" 0 "http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=3&ved=0CFwQFjAB&url=http%3A%2F%2FMYIPADDRESS%2F%3A995&ei=25fEWPuSIsTQoQf4aw&usg=AFQjCNFijmuDxz260-T2ocf_40a80HUhag" "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36" "-"