First of all, we need to define a footprint: A footprint is a unique identifier on all your blogs. This could be a specific Plugin, theme, outbound link pattern, Whois and many others things. Finding most footprints is more complex than running a Google query, so we’ll assume the one who’s looking for it has the knowledge, computer- and man-power to do it. PBN still works and still powerful, Those that were penalized in ending of 2014 didn't follow the guidelines in running a no footprint PBN that's why their networks were easily targeted and de-indexed. Instead of wasting money buying link building software of buying 50 post on PBN blogs why not start your own. While something can be a footprint, it is not harmful if it’s used by thousands, tens of thousands or even millions of other (legitimate) blogs. This goes for plugins, themes, WordPress itself and anything else that is used on mass scale on the Internet. How I run my PBN blogs and things to avoid · Do not use same details for all your domains but create fake whois accounts using fakenamegenerator on reputable registrars like Godaddy, Name.com, Namecheap etc but use real details in the billing information · On putting your first domain on the new accounts either through auction or registering new domain you will be asked to verify your emails, make sure you do so to avoid your account being temporarily banned · Do not register your domains the same day · Use Whois privacy on some of your domains on average around 20%. · install different Themes and Plugins · Your PBN blogs has to be unique so do not use spun contents on your blog but unique contents with different length · Do not point links only to your money site but mix it with related blogs. Always link to other smaller niche websites which are not in direct competition to yours(link to them with naked url) · SOA Records are seen in DNS reports and include a “hostmaster” email address. If you’re using cPanel it usually uses your email which you signed up with. This is an enormous problem, so go and remove the email by clicking Preferences and Update Contact Info. · Another obvious one would be Webmaster Tools, any kind of Analytics or advertising codes. These have actual unique IDs in source code and are very easy to find even for beginners . · No Hosting on only one provider or C-Block providers. If your links’ IPs are the same or too close (as is common with SEO/C-Block hosting), they can be discounted because Google expects links coming from a diverse range of IPs. Summary When not sure if something can hurt you – think if it would be natural for a legitimate blog. Hopefully this blog post can clear up a lot of questions that people have when building their PBN.