Blacklist Lookup

Search Engine Optimization

Blacklist Lookup

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About Blacklist Lookup


A website might end itself on a blacklist if a website owner decides to send thousands of individuals’ emails marketing a new product. The email service provider may add the website to a blacklist if one or more recipients designate the email as spam. In a separate scenario, if you notice that your website's traffic has ceased and frequent visitors have stopped coming, one of the causes may be that your website has been blacklisted. You should also check to determine if a domain is blacklisted if someone offers to sell it to you.

The internet blacklist service is managed by a few different groups. Email providers use DNSBL and SURBL to see if a domain has been blacklisted. In an effort to prevent unwanted messages from reaching their users, email companies employ these services. When adding or removing IP addresses from their DNSBL databases, several providers apply a wide range of criteria. Email service providers employ spam filters, and the first lines of defense are DNSBL services. For checking e-mail for spam, SURBL isn't high on the list of tools to use. There's a list of banned domains there because they frequently show up in spam messages. Both of these strategies are employed by email providers as an initial line of defense against spam.

What is a Black-list Lookup or check?

A blacklist check or lookup is a thorough scan of numerous anti-spam databases to discover whether a specific IP address has been blacklisted. Anti-spam databases, often known as blacklists, are a typical means of preventing spam email messages from being delivered. The IP addresses in the lists are known or suspected to be spam sources. Email cannot be sent from any IP address on a blacklist.

However, when an IP address is added to a spam database, no notification is sent. Because of this, a blacklist lookup is frequently the only way a domain owner can learn that their domain has been added to the blacklist database. While some databases give banned addresses expiration dates, some entries can be permanent.

There are numerous anti-spam databases available. These databases are primarily searched for a certain IP address as part of a blacklist look-up. The IP address of a remote mail server is transformed into a domain name using the ip4r format in order to do the blacklist check. The search field for each database is then used to enter that name. The person who conducted the search then compiles a list of the databases where the IP address in issue is being blocked after finishing the search.

What are the factors that cause IP Blacklist Check?

There are a variety of causes for IP address blacklisting. The goal is to block access to potentially malicious IP addresses from other websites and users. However, there are situations when a legitimate, secure IP is mistakenly blacklisted because of a mistake on the part of the blacklist. If you run a blacklist check online, you can discover that your own IP address has been flagged for blocking.

The following are examples of why an IP address might be added to a blacklist:

  • This IP address has been linked to spam sending.

  • Inappropriate or potentially harmful content is hosted by the IP address's linked website. 

  • Your device has a malware infestation.

  • You used that IP address to visit a black market or other illegal trading

Furthermore, a domain can be blacklisted solely because its IP address is associated with well-known spammers. In other circumstances, a spammer may have infected a system without the owner's awareness, causing it to automatically send out unsolicited emails. A faulty mail server that sends out inaccurate information may potentially be included to a blacklist database.

How do I find whether my IP address has been blacklisted?

Enter your IP address above to see if it appears on any is a great resource for finding out your IP address if you have forgotten it. Check IP blacklists with a table of results generated by the IP blacklist checker. There is a record of whether or not that service has blacklisted the IP address of your server.

Domain blacklists Check don't alert users when their IP is blacklisted. Users, mail servers, or corporations who suspect they have a blacklisted IP address must check the blacklist. The tool above makes checking blacklist status easy.

How can I unblock my IP?

You can perform an IP blacklist removal online even if your IP address was added to one. But before that you have to make sure that your network is malware-free when attempting to resolve a blacklisted IP address because databases occasionally blacklist IPs for viruses that users aren't even aware of. If your network is in good shape, locate the list that blacklisted your IP address and request removal from it.

Each blacklist handles IP removal requests in a unique way. You can't execute a quick IP blacklist removal online, and databases can choose whether or not to honor requests; Moreover, submitting a removal request remains the best way for removing your IP address or mail server IP from the blacklist. If you are an email system administrator and your server has been banned, you will need to work with the DNSBLs that have listed you.

How to use Blacklist Lookup?

This is quite easy with SiteSpeedSeo. You have to visit, then seek for the "blacklist lookup" icon to see if the target website is blacklisted anywhere. You may also open a new tab in your web browser and type in Your domain's IP address is crucial information. Give it a try with this IP address. The sole purpose is to determine whether or not your domain is blacklisted via DNS.

You can use different tools on the internet to see if your website has been linked to by another. It is very challenging to have a website removed from a blacklist. There are methods to try and get your website unblocked, but no promises can be made. Since this is the case, you should take precautions to keep your website out of danger. Never pay for links or fall for free link offers to increase your site's page rank. Modern search engines are quite sophisticated and current. Search engines may punish your website if they discover inbound links from untrustworthy or blacklisted sources.


Don't resort to manipulating your website's ranking in search engines by using unnatural means, such as buying backlinks.

What are some Blacklist Websites for Spam Protection?

As was previously noted, domain name server blacklists are the first line of defence against spam since they prevent emails from being sent to what are assumed to be spam accounts. Spam universal resource identifier blacklists (SURBLs) provide an additional line of defence, nevertheless. These databases are blacklists of domains known to be often referenced in spam emails; however they are not used by all email spam filters. Emails that have been processed by a spam filter that makes use of the SURBLs have had their body content scanned, with the extracted URLs being compared against blacklists. If the server detects an address, it will treat the message as spam.

Also, never click on links from unknown websites. You should examine your backlinks on a regular basis to guarantee that they are coming from 'clean' sites. While there are millions of renown websites, there are also really nasty people out there that attempt to hack and misuse them. You must remain vigilant. If any of your site visitors complain that they can't view your website, examine it right away to make sure it hasn't been blacklisted.

For optimal results, it's best to use both approaches together, as they each have their own unique way of filtering spam. Because spammers are constantly innovating new techniques to avoid detection, no single solution can guarantee that all unwanted messages will be blocked.


Blacklist Lookup FAQS

  1. What exactly is a DNSBL?

DNS blacklisting is a software tool that aids and facilitates the blocking of IP addresses that deliver spam content by mail service providers.

Today, many companies offer DNS blacklist services. Each service has its own unique system for detecting and blocking spam IP addresses. A standard feature of most email providers is a built-in DNS service.

Common factors:

  • Inappropriate material

  • Assaults via phishing email

  • There has been an excessive number of unsubscribe requests or an incorrect mailing list has been used.

  • Fraudulent email impersonation

  • Black marketplaces and pornographic material are just two examples of the types of inappropriate material that can be found on the web.

  1. How can I check a domain's or IP addresses blacklist?

Your company name and reputation could suffer if your IP address or domain is blacklisted. However, simply enter your IP address or domain name into SiteSpeedSeo blacklist checker tool and it will instantly check against the most prominent 10+ blacklist databases to determine whether or not your IP address or domain has been blacklisted.

  1. How do I resolve a blacklisted IP/Domain/Email?

Determine which blacklist providers your site has been blacklisted by. Make a formal request to have your web address removed. Keep in mind that the technique may change slightly from service to service.