TrustRank revisited: do search engines trust
In 2004, Yahoo engineers published a document about TrustRank.
TrustRank describes an algorithm that search engines can use
to determine relevant search results.
In contrast to the original PageRank algorithm, TrustRank
does not solely count the number of links that point to a
website but it also considers the authority of a website.
TrustRank was meant to fight spam in the search results
The abstract of the publication shows that PageRank was meant
as a way to fight web spam:
"Web spam pages use various techniques to achieve higher-than-deserved
rankings in a search engine's results. While human experts
can identify spam, it is too expensive to manually evaluate
a large number of pages. Instead, we propose techniques to
semi-automatically separate reputable, good pages from spam.
We first select a small set of seed pages to be evaluated
by an expert. Once we manually identify the reputable seed
pages, we use the link structure of the web to discover other
pages that are likely to be good [...]
Our results show that we can effectively filter out spam
from a significant fraction of the web, based on a good seed
set of less than 200 sites."
Today, all major search engines use some kind of TrustRank
Although Google does not use the official term, most professional
search engine optimizers are quite sure that Google and all
other major search engines use the same concept to improve
the quality of their search results.
That means that it is not enough to get as many links as
possible. It is also necessary that your website gets links
from the right kind of websites and that search engines trust
How to become a trusted website
There are a few things that you can do to show search engines
that your website is trustworthy:
1. Get links from seed sites or from websites that are linked
from seed sites
Seed sites are websites that are manually marked as trustworthy
by the search engine owners. For example, if Apple.com has
been chosen as a seed website by the search engine a link
from Apple.com will have a positive effect on the TrustRank
of your website.
If Apple.com links to website X, website X links to website
Y and website Y links to your website then your website will
still get a good TrustRank.
2. Get an old domain name with a good domain history
The older your domain is, the better. If your domain has
been online for several years, this is a signal that the website
owner is serious about the site and it's less likely that
the domain is used for spamming purposes.
Your domain name should not have changed the owner too often
and it should not have been used for many different topics.
Of course, it also should not have been used by spammers in
3. Get links from related websites
Does your website get links from related websites and does
it link to other related websites? Is your website a lonely
island with no links from and to other websites or is it integrated
in a network that deals with a special topic?
4. Don't link to spam websites
You should not link to websites that are known spammers or
to websites with dubious quality. If you link to such a website,
you show search engines that you support them and that your
own website should not be trusted too much.
5. Get many links from social networks
The more often your website is mentioned on social media
websites, the more likely it is that your website is a trustworthy
high quality website. The more votes your bookmarks on social
media sites get, the better.
6. Offer good content and stay away from certain topics
It is not likely that a website that consists of only one
page is an authority website. If your website has many pages
that contain great content about a special topic then it is
much easier to get a good TrustRank.
If your website deals with a special topic, then it's likely
that it never will get a high TrustRank. These topics are
the topics for which you receive the most spam emails.
If search engines trust your website, it is much easier to
get high rankings. If you want to find out if your website
has all the elements that are needed to get high rankings
on Google, Yahoo, Bing and other search engines, analyze your
website with IBP's Top 10 Optimizer.