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41
How-to 5 min read September 9, 2019

How to check links donors for sanctions and viruses

The goal of the external site promotion is getting the high-qualified link mass. Checking donor-sites is essential to be sure that the resources which refer to your site haven't got any viruses and aren't filtered.

Why site donors' checking is important?

Donors which are sanctioned by search engines decrease acceptor's ranking and may cause it's getting filtered. Generally, the sanctions mean total site's exception from the SERP, decreasing ranking or partial exception of some pages.

Any sort of the sanction leaves its trace on the site's history and reputation. In case of banning, great work must be done to deal with it and get the site unblocked. Promoting the sanctioned site is quite a difficult process. Google applies a Penguin filter for using bad links.

A virus is a malicious code, that means a result of hacking. The virus can harm the site itself as well as the whole hosting. The latter will cause spreading the viruses among all the hosted websites. While entering the infected site, a user gets a notification that this is unsafe.

Checking a donor-site for sanctions

As our purpose is not to study our site but check the donors, we can't use Google Search Console. So, let's consider some other online checking services.

You may use some link markets' stats which estimate the site's trustworthiness and rank its possibility of being sanctioned.

An analyzer which can help to see the risk of becoming filtered is Websites Penalty Indicator. The tool is free and available even without registration. It helps to trace how Google algorithms' updates influence the site.
How to check sanctions in Websites Penalty Indicator
If you see that the organic site traffic is significantly affected, the probability of the site's being sanctioned grows. Here are some examples of the traffic on a sanctioned site:
Websites Penalty Indicator checking online
The opposite situation:
Site's traffic after search engines penalties
Search engines penalty influence on the site
Must be noted that the sanctions may be applied not for the whole site but for some of the pages. In this case, the analysis becomes much harder.

Viruses

Here are the main virus types:

  • doorways;
  • proxy and botnets;
  • iframe;
  • shell.
Doorways create additional sites inside your portal which post ads. Proxy and botnets waste your site resources on useless kinds of traffic such as spam.

Iframe is a serious threat not only for the site but for a computer as well. It can steal confidential information, provide fraud schemes, load trojan and other kinds of viruses.

Shell gets integrated into a remote server and changes the initial code. Then you lose the site control. If the site which is referring to you has at least one of the mentioned viruses, this seriously threats your web-resource.

Diagnostics

To check your site for malware, you can use Web inspector. This is a free website malware scanner.

While entering the infected site, your antivirus signalizes about the threat. Either, Google also will notify you about the risks.
Warning about virus on the site
Moreover, you can use virustotal to check the site for viruses. Choose the URL tab and enter the site address to start analyzing.
Checking site for viruses online
Checking viruses on the site
How to check site's donor for malware
How to scan a site for malware
What is the worst of being infected is that likely you will be added to a ban-list. So, if a donor-site is infected, it doesn't have to refer to your site. And your web-resource mustn't contain any of them.

Conclusion

Checking a donor-site for sanctions or viruses is extremely important. Using a low-quality link mass may result in the filtering of your site. In the case of viruses, your site and users' computers also can be infected.

To check the site for sanctions and verify its traffic, you should use the Websites Penalty Indicator. The examples of how filters affect the site traffic are mentioned above.

It's not so hard to identify viruses, because while entering the site, you receive a warning message either from your antivirus software or search engine. In addition, you can use a Virustotal tool to be sure that the referring site is clear and safe.

This article is a part of Serpstat's Checklist tool
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Checklist is a ready-to-do list that helps to keep reporting of the work progress on a specific project. The tool contains templates with an extensive list of project development parameters where you can also add your own items and plans.
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