What is a Private Blog Network or PBN?
Personal blog network (PBN) is a collection of domains owned or owned by other individuals. It is possible to have a PBN consisting of free blogs, such as wordpress.com, tumbr.com, or livejournal.com. Usually, a free blog domain doesn't have as much power as a hosted blog.

PBN also means a network of authoritative websites that are used to link to your money site for the purpose of getting a higher ranking on the Google search engine.
What is PBN (Private Blog Network)
What are the benefits of using PBN for SEO?
Look, the SEO mindset is also about PBN. Google wants websites that are on page 1 to be quality websites that are truly liked by users and recommended by users either through social media, forums, web / personal blogs or others. Recommendation / vote / share user is what we know as backlinks or links / links back to our website.

Recommendation / vote for users / backlinks is also used as a reference by Google (other than the web content) in placing websites to be on page one. Even though it's simple like that Google gives different values ​​for each recommendation / vote / share that is done by the user based on the algorithm, starting from the quality of the user who gives recommendations / votes / shares, content / articles, types of links and others. that's why we learn SEO that addresses all that. Google launched a name called natural links and un natural links, and what Google wanted was a natural link.

Why did it work?
Links are the most important ranking factor. It turns out that backlinks, even though there is some noise and certainly a lot of spam, for the most part are still very great in terms of the quality of search results.

That was a quote from Matt Cutts, when asked about excluding the relevance of backlinks from the algorithm.

What makes this strategy effective is that the website that forms PBN is considered by Google as authoritative. You do not receive links from several new websites, or sites that cannot be trusted, you receive links from popular websites that Google algorithms like.

To understand how this works, here is an example of figurative ...
The initiative was launched in 2011 to help clear the streets of Chicago. They have setup a website under cleanchicagostreets.com.

This initiative received a lot of publicity, they were displayed on local government websites and their local news sites.They gathered enough publicity and money to follow his plan. And they do it, all in a year.

Now their site is no longer needed, and has become an insignificant cost for updating hosting and domains. So they let it end.

This is a domain that has links from local government websites and local news websites. And because it has links from highly trusted sites, Google also considers this site to be trustworthy.

Fast forward to this day, SEO finds this domain, can search metrics to see how trustworthy and authoritative it is, then buy it from any domain registrar that will be used for their PBN.

That's the point, how the domain is found.
Between 30,000 - 50,000 domains expire every day, many of which will have good 'metrics' for PBN.
Measuring Domain Quality.
There are 4 main metrics used to measure domains. You can use everything at once, but often 1 or 2 is enough.

This is …
  1. DA - Domain Authority by Moz.com
  2. PA - Page Authority by Moz.com
  3. TF - Arus Kep Trust by Majestic.com
  4. CF - Flow Citation by Majestic.com
I am not technical enough to know exactly how all this works, but here are the basics ...
DA measures how authoritative the entire domain is, based on the link to it.

PA measures how authoritative one page is on this site, based on the link to it. This is also influenced by DA from the website.
  1. TF measures the trust and authority of website links.
  2. The CF measures how strongly it relates to the website.
Here is a brief reference guide on what to look for:
  1. DA - 18+
  2. TF - 13+
  3. CF - 15+
I have bought domains that are weaker than this on many occasions, but this is a general guideline that I am trying to follow. Don't worry about following it exactly.

This metric represents the strength of the domain you are looking at, but there are some things that need to be checked before buying it ...

Referring Domains - Metrics that indicate the number of websites linked to the domain you are looking for. Anything above 30 is pretty good here.

Backlinks - This is the number of links the website has. If one website links to the domain 3 times, then it's 3 backlinks but only 1 referring domain. Make sure you check this before buying a domain.

Anchor Text - This is the text that people use when linking to a website. Look to see if it contains a brand name (normal), and avoid that: very much targeted keywords, have a big brand name that is often associated with the sale of counterfeit goods, and other obvious things like viagra or adult adult themes.

Tools for Checking Metrics:
  1. OpenSite Explorer - Check DA & PA
  2. Bulk DA Checker - Check DA in Bulk
  3. Majestic - Check TF, CF, Referring Domains, Backlinks, and Anchor Texts
Ahrefs - Similar to Majestic, it seems to have more indexed websites (so you can see more links)

I strongly recommend that you have a Majestic Silver account ($ 49.99 / month paid every three months) or an Ahrefs Professional account ($ 79 / month), but if you are just starting out, a free account on one of these services should be enough.
Expired VS Expiring Domains
Domain Expired is a domain that is truly dropped and is available to register from any registrar with a standard domain registration fee.

Expiring Domains is a domain that reaches an expiration date but is held by a registration officer to auction / sell. This domain maintains their age, ie when the previous owner registered it 5 years ago, the domain remained registered for 5 years.

There is no exact data regarding which type of domain is better. Some people believe expired domains give more power, but many of them have this bias because they sell expired domains.

All I can say for sure is that both types work. But you are far more likely to get an expired domain with a high metric, than an expired one, but you will also pay for that privilege too.

As for finding a domain, there are several strategies for this:
  • Find a broker - Easy
  • Scraping - Time Consuming and Intermediate
  • Auctions - Eating and Easy Time
  • Backordering - Consumption and Forward Time
What is scraping?
A scrap domain is where you use automated bots or a set of tools to capture links on old web pages that point to domains that are not listed anymore (type of domain: expired).

For example, you can have a bot crawling the chicagotribune.com site and check every website that is connected to it. Immediately find an old article from 2011 that is connected to cleanchicagostreets.com, which is no longer registered as a domain.This will be recorded for your notes. You can then buy a domain from any domain registrar.

You can also buy a used domain from a broker. Brokers are the best of the best when scratching, they have automatic tools that are fast and efficient to do it for them.

You can do this manually and successfully. But you see 2 hours or more of work per domain that you find, not to mention waiting for additional tools to complete it (you can't just work 4 hours and find 2 domains).
Your financial situation might determine which route is best for you, so we will discuss how to do both.

Option 1 - Find a broker
Here is a list of brokerage sites that you can buy from 1 at a time or in large quantities.
Please note that I have never used all of these brokers, but at least I have heard good things from others about everything.
  1. PureQualityDomains
  2. HighPADomains
  3. TBSolutions
  4. Join Lion Zeal Marketplace for 4,000+ FB groups to buy / sell SEO items
Option 2 - scraping yourself
The way it works is to use a tool that automatically checks the outbound links that the website has, to see if there are websites that are connected to offline. Then you can check whether the domain is available to register and check the metrics.

To increase the likelihood of finding websites that are linked to offline websites, we try to find old pages. An article from 2001 was more likely to do this than pages from 2014.
There is a lot of manual work and time needed for this, but it will work. Especially if you become a little more inventive with your Google search.

Note: This is the old way to do this completely manually. I strongly recommend that you read and understand the process, but there are various automatic tools to speed this up now which we will discuss next.