August 18, 2017 at 05:33What is DNSBL and how do you not get there
DNSBL is a blacklist of domains and IP addresses. Under the cut, it is described what they are, for what merits you can get there and what it is fraught with. Well, how quickly from there, in which case, to get out using the HostTracker website monitoring service , we also mentioned.
Even white and fluffy sites often end up in an extremely unpleasant company, namely in the same list next to spammers, scammers and beggars. And in this case it is especially dangerous - for the owner is firmly convinced that his site is a storehouse of wisdom and that it can be viewed without a shudder even without using an ad blocker. So, he learns about the problem, if it does happen, very soon. But she can happen.
Example (random free proxy):
And if you click on any of these links, you can find the reason:
That is, this mail server has incorrect settings, or is already hacked. By clicking on other links, you can find other reasons: someone’s spam is already coming through it. Why can different reasons be indicated? What exactly do DNSBL compilers pay attention to?
So, domain names AND / OR IP addresses fall into DNSBL. Tenants of shared hosting with a common pool of IP addresses have already strained, aren't they? But the unscrupulousness of hosting to customers and the unlucky star where your site at one point was at the same address with the Prince of Nigeria are not the only causes of trouble. Lists are compiled according to these criteria:
Suspicious activity of the mail server. What exactly is suspicion? Everyone can create their own DNSBL list, laying there, along with expert opinion and experience, all the shortcomings of their education and children's insults. It can be just the intensity of mailing letters, or something more interesting - its distribution in time, the use of duplicate mailing lists, etc.Many medium-sized hosters offering their clients the services of an integrated mail server have long been registered in such lists. Therefore, with a serious approach to business, using these servers is just not recommended.
Mail servers with the wrong configuration. While the criteria for correctness may change over time. This may be the absence of some, according to the compiler of the next DNSBL list, important entry in the settings. Or open ports. Or the potential for OS vulnerabilities on this server.
Customer complaints.Yes, if you clicked "complain", "unsubscribe" and the like somewhere, and even forgot about it right away - it is quite possible that your efforts were not in vain. Not to mention angry letters to the hoster or site owner. And the fact that they usually wanted to sneeze at this - just practically guarantees that the offender will go to the dark side in two clicks without unnecessary proceedings.
Proxies, in particular allowing anonymous use. Here, too, each has its own criteria. Someone just for anonymity can ban.
There are a great many DNSBL lists. But some, over the years of existence, have gained a reputation and some weight. The main criterion is practicality. If the list really allows you to filter out spam or other unwanted actions - a variety of services begin to use it. And the consequences can be very diverse - emails stop coming or they automatically fall into spam, visitors get warnings about fraud, the site disappears from some directories where it was previously included, and so on. The result, as a rule, is one - the site falls in the issuance and loses part of the customers. And the more it appears in more lists, the more noticeable are these effects. If the joint is serious, then the matter takes a serious turn, but then it is quickly noticed and corrected. If not, a site can hang in a couple of lists for years and stably lose something. What is worse and in what case is a matter of taste. So that
Well, or quickly get out of there if that. Since no one will give you guarantees of non-availability. But you can regularly check these lists, as if he were saving God. And, of course, you can do this automatically. At what completely free . Well, for regular customers there is a separate function that will keep an eye on the bright name and address of the site on an ongoing basis and will notify you of past troubles.
Having found a hit, the main thing is to react quickly: the less time the site spends on the list, the less chance of problems. So far, no one has synchronized with this list. As a rule, they allow you to delete a record automatically. Just go through the anti-bot captcha and click politely. Here you just need to go to a specific page from the right address:
In some cases, you need to write a letter. But the efforts in any case are not an example less than when eliminating the consequences. So in one way or another, we recommend that you keep your finger on the pulse. And yes, generally speaking, hosting should do all this. But ... :) The
HostTracker developed this function when it once got into binding. Therefore, we recommend learning from our mistakes. Suggestions and comments, as always, will be welcome.
Even white and fluffy sites often end up in an extremely unpleasant company, namely in the same list next to spammers, scammers and beggars. And in this case it is especially dangerous - for the owner is firmly convinced that his site is a storehouse of wisdom and that it can be viewed without a shudder even without using an ad blocker. So, he learns about the problem, if it does happen, very soon. But she can happen.
Example (random free proxy):
And if you click on any of these links, you can find the reason:
That is, this mail server has incorrect settings, or is already hacked. By clicking on other links, you can find other reasons: someone’s spam is already coming through it. Why can different reasons be indicated? What exactly do DNSBL compilers pay attention to?
How and why?
So, domain names AND / OR IP addresses fall into DNSBL. Tenants of shared hosting with a common pool of IP addresses have already strained, aren't they? But the unscrupulousness of hosting to customers and the unlucky star where your site at one point was at the same address with the Prince of Nigeria are not the only causes of trouble. Lists are compiled according to these criteria:
Suspicious activity of the mail server. What exactly is suspicion? Everyone can create their own DNSBL list, laying there, along with expert opinion and experience, all the shortcomings of their education and children's insults. It can be just the intensity of mailing letters, or something more interesting - its distribution in time, the use of duplicate mailing lists, etc.Many medium-sized hosters offering their clients the services of an integrated mail server have long been registered in such lists. Therefore, with a serious approach to business, using these servers is just not recommended.
Mail servers with the wrong configuration. While the criteria for correctness may change over time. This may be the absence of some, according to the compiler of the next DNSBL list, important entry in the settings. Or open ports. Or the potential for OS vulnerabilities on this server.
Customer complaints.Yes, if you clicked "complain", "unsubscribe" and the like somewhere, and even forgot about it right away - it is quite possible that your efforts were not in vain. Not to mention angry letters to the hoster or site owner. And the fact that they usually wanted to sneeze at this - just practically guarantees that the offender will go to the dark side in two clicks without unnecessary proceedings.
Proxies, in particular allowing anonymous use. Here, too, each has its own criteria. Someone just for anonymity can ban.
What are we afraid of
There are a great many DNSBL lists. But some, over the years of existence, have gained a reputation and some weight. The main criterion is practicality. If the list really allows you to filter out spam or other unwanted actions - a variety of services begin to use it. And the consequences can be very diverse - emails stop coming or they automatically fall into spam, visitors get warnings about fraud, the site disappears from some directories where it was previously included, and so on. The result, as a rule, is one - the site falls in the issuance and loses part of the customers. And the more it appears in more lists, the more noticeable are these effects. If the joint is serious, then the matter takes a serious turn, but then it is quickly noticed and corrected. If not, a site can hang in a couple of lists for years and stably lose something. What is worse and in what case is a matter of taste. So that
Better not get there at all
Well, or quickly get out of there if that. Since no one will give you guarantees of non-availability. But you can regularly check these lists, as if he were saving God. And, of course, you can do this automatically. At what completely free . Well, for regular customers there is a separate function that will keep an eye on the bright name and address of the site on an ongoing basis and will notify you of past troubles.
We get out of the pit
Having found a hit, the main thing is to react quickly: the less time the site spends on the list, the less chance of problems. So far, no one has synchronized with this list. As a rule, they allow you to delete a record automatically. Just go through the anti-bot captcha and click politely. Here you just need to go to a specific page from the right address:
In some cases, you need to write a letter. But the efforts in any case are not an example less than when eliminating the consequences. So in one way or another, we recommend that you keep your finger on the pulse. And yes, generally speaking, hosting should do all this. But ... :) The
HostTracker developed this function when it once got into binding. Therefore, we recommend learning from our mistakes. Suggestions and comments, as always, will be welcome.