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In the past two years, the Domain name Trust degree in the Google ranking algorithm is very large. Many times large, high trust sites, inside the page can occupy a lot of keyword rankings, and effortless. The most obvious power of domain name trust is Wikipedia.
Give the domain name trust degree so much weight, Google is to deal with spam sites. The premise of this logic is that the sites that have been trusted are usually clean and do not have poor quality content. Do spam site is the map fast, will not take the time to make the garbage station into a high degree of trust in the site.
This certainly has its reason, but the side effect now also more and more obvious. For example, many people rely on a number of domain name High trust in a large site to create a content page, you can get a good position. This example is common in some keywords with strong competition and black hat aggregation.
Regardless of the pros and cons, this is a fact, we do the site can only adapt.
I feel that the most important domain name trust degree is the following factors.
Links from other highly trusted sites
Google's initial explanation for the TrustRank was the artificial selection of the highest-rated seed sites, estimated to be Yahoo, the New York Times, Wikipedia and other obvious high-quality sites. Then, depending on which other sites are linked to these high-quality sites, identify the trusted domain name at the secondary level. In other words, if your domain name from Yahoo, the New York Times and other links, then your domain name will gain a second degree of trust.
And so on, the second level trusted domain name can bring out a batch of third level, third level and connect to the fourth level. The farther away from the core, the lower the degree of trust.
This concept is similar to the PR value, is linked to the logo, but it is not a PR value.
The core of the trusted Web site is only more than 100. They are all artificially selected, not measured by PR value. This Domain name Trust degree is not calculated by page, but by domain name. Therefore, the Domain name Trust degree does not depend on the number of links, especially the number of spam links. So I used to stress that links are about quality, not quantity.
Domain History
This includes the initial registration time of the domain name, the first time the page was crawled by Google.
Obviously, the earlier the registration domain name, the higher the degree of trust. It's simple and effective. If you have a domain name that has been registered for ten years, it is a powerful weapon. If you have a domain name that has been registered for 15 years, whatever you do with it, it is likely to be seamless.
I have the oldest domain name, and only 6 years. This is why I am not satisfied with SEO every day a paste in the domain name, but I do not intend to change. Even if the history of two or three years, but also the new domain name is not available, this is a resource that cannot be duplicated.
Website content original and update
The core of more than 100 trusted domain name selection is artificial. We can imagine that the content of original requirements must be a large proportion, and these sites must be constantly updated. Algorithms can be fooled, people can not fool, especially such important things.
It is difficult to imagine that the collection station will be considered as a high degree of trust in the site, at least at the beginning of the site must be original. After gaining a certain degree of trust, adding some reprinted content may be harmless.
Of course, there are other details that affect the trust degree of domain name, I feel the most important is above these three conditions.