petra.ac.id opened on 27.7.1979 and this domain is 36 years, 9 months old. We see that petra.ac.id is using Google Adsense to monetize and , 106525 Alexa Rank and Country rank shows us how good and useful this site is.It is well known webmasters care about W3 Validator and fortunately W3 didn't find any error and warning on petra.ac.id. It is important for every website to open quick and be smooth while surfing. We see this site opens in 2405 milliseconds and it isn't a good score at all, you can make your site faster by compressing your scripts and stylesheets. This domain's nameservers are ns1.petra.ac.id and ns2.petra.ac.id.On our researches we see petra.ac.id gets visitors with these words : ra aris kontraktori, asit petra, apa itu html, explosion frame moment design, surfaktan yang digunakan untuk beton rosin, cara menghitung ip, contoh kuesioner responden, petra, john donn focault, fuzz pid tuning formula. This website doesn't have any keyword, we think they should put at least one or two keywords. We see petra.ac.id has DMOZ record in False category that is why we think this website is 100% secure to surf but since DMOZ wants money to add your website to Dmoz we can't say, if a site is not in Dmoz then it is not a secure site.We see that your website gets most of the users with these missed types;0etra.ac.id, ptra.ac.id, pdetra.ac.id, pera.ac.id, pe5tra.ac.id, peta.ac.id, pet4ra.ac.id, petrq.ac.id,
Mostly to be successful, and to obtain top rankings or positions in the search engines.