A large part of the data comes from the most famous and authoritative SEO services (SEO Majestic, ahrefs, SEMrush, etc.), while the other part we are crawling directly. At the moment we use data from a total of 24 different sources, and are still working to improve it.
How does your algorithm define Link Quality?
Our algorithm looks at a combination of factors and signals that may impact on the Penguin update and can be SPAM indicators. For example, we can determine:
Anchor vs Total Text Ratio
Website Page Authority and trust
Banned in Google or not
External backlinks count to domain/page
Count of external links in sidebar/footer
text vs html ratio
Content count on page
Pages in index of Google And much more…
But how can you know how the Google Penguin algorithm really works?
We cannot know the algorithm of Google. No one can. However, we can evaluate your references and risk harm to your site based on the experience of experts. How does an SEO expert or SEO studio determine harmful effects on your site from your links? They simply go for it and analyze its quality on the basis of a number of factors (quality of the source, the quality of content, location of the links, anchor text, outgoing backlinks, and so on). Afterwards, they conclude the danger based on the totality of evidence. Our service simply does this automatically and much more quickly. Initially, LinkQuidator was created to automate our internal processes for such tasks.
What is Referral influence?
Referral Influence - this is our new trademark parameter that reflects the potential effect of a backlink on your page. How do you estimate Referral Influence? First, we derive the parameter that objectively reflects the reference domain authority and specific donor page, and then pass it through the filters, the factors that may affect the impact of the link and the volume that it can transmit. For example, on the basis of our data, we can make conclusions about the time of its indexation, the role of the pages on the site, we can check outbound backlinks, external links on the page, content quality, social signals and so on. The process is pretty similar to how we define Link Quality, only we use different formulas and indicators.
Why is link quality critical, yet it has great referral influence? How can this be?
Yes, it can be. You have to understand that Google uses different algorithms to determine doubtful and bad links and to calculate the trust and authority of the domain and others to rank your page. As such, bad links may provide a reference volume. That is why you can still see in the index bad sites or doorway pages with a lot of questionable links. However, as soon as Google tests the quality and naturalness of the links through Penguin, the site instantly gets a penalty or removed from the top.
Can I use your tool for link building?
Sure you can. You have to understand that we provide only tools, and so the result will depend on how you will use them. For example, you must know that Google is trying to keep an eye not only on the number of bad links on your pages, but also how quickly and naturally they appeared.
What does Suspicious Referrals mean?
Suspicious referrals are domains from which you receive many poor quality links (spammy, bad, critical).
Do I need to worry about the quality of the No Follow links? Google says they ignores them.
Not in that way. Google says it will not take them into account as a ranking factor, but Penguin has always perceived these kind of links as a factor. Secondly, after the update of September 23, 2016, Penguin 4.0 became part of the core algorithm and now they try not to penalize your site right away, and are simply trying just to remove spammy pages from the index. And this means that potentially bad No Follow links can directly effect your traffic.
Google says it does not consider No Follow links, but I see some small Referral Influence from them.
That’s true. Indeed, we are inclined to believe that Google take them into account as some kind of signal. As many No Follow links often bring natural referral traffic, we see no reason to consider them as totally useless. Many experts even argue about whether they take into account the search engines. But of course if they do have some influence, it is many times weaker than Do Follow links.
What new features and tools are you developing?
Nothing special, though we are currently developing and preparing to release integration with Google Analytics, an online monitoring system of your backlinks, the ability to communicate with the owners of the domains, and a number of other innovations that will make our service more convenient and accurate. However, our main priority is still on the constant improvement of the tools that we have. We are constantly trying to find and process as much data as is possible and improve our algorithms. We are probably not the cute guys who are good at everything; we are more like the geeks that are best at one thing!