Blacklist Lookup

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About IP Address Blacklist Checker

Check to see if any IP address or an email server IP is blacklisted or not with over fifty plus DNS-based blacklists (DNSBLs Email Spam is not a problem of IP reputation alone.

What blacklisting an IP address means?

The tool checks whether the given IP address or URL is listed in the Spamhaus Block List (SBL).

That is how email system providers use that database to filter out spam emails before they are finally sent out to the end-user

For example, if you're sending an email that is promoting your new product, some of the receivers may mark that email as spam.

Your IP could be blocked by an ISP or government and there is a high chance that it will get blocked. We recommend that you don't use it.

IP address blacklisting is the process or method to filter out or block the illegitimate or malicious IP addresses to access your network.

It's when your web hosting company ignores your IP address. Spam is an email sent without prior approval of the recipient. It is also known as junk mail or UBE spam.

A recent study suggests that email traffic consists of almost 80% of all spam emails. Spam Blacklist If you’ve ever opened an email and thought “oh my gosh, this is a spam email

What is a DNSBL?

A DNSBL stands for Domain Name System Blacklist and it is the system used to let the administrator block the messages from specific IP addresses which have a history of sending spam.

The list is based on IP addresses, which are numeric values that identify every device or computer connected to the Internet. It's easy to understand how many people are online because the list comes from IP addresses.

Suppose a maintainer of a blacklist in the past has received any spam from a specific domain.

Some sites would consider it spam and may blacklist the server from their servers altogether.

All the messages sent from that particular server would either be rejected/flagged by all the websites that use that blacklist to avoid spam.

DNSBLs are the first line of defense in fighting the spread of spam. There are dozens of DNSBLs online and each has its own set of rules and offensive categories to focus on.

The most common nasty type of content is spam, but some blacklists focus on hacking, malware, botnets, etc.

The email administrators use these DNSBLs to check if the incoming email is generated or originated from the blacklisted IP address.

What is SURBL?

SURBL is a list of websites that have appeared in unsolicited messages.

It is the second line of defense, and not all anti-spam filters can use it.

Spam messages are not detected by any spam detection system that I know of, and the only way to stop spam is to remove spammers from the network.

The SURBLs are used by email administrators to scan the email messages' body text for any URLs that match a URL black list and then report back to the company, letting them know if

Spam can be found in a variety of locations, including emails, chat rooms, web pages, and other places. Your messages are treated as spam or handled accordingly.


It is interesting to note that the websites in unsolicited messages are more consistently used than the rapidly changing botnet IP addresses used to send the vast majority of them.

There are many different companies that provide different services related to IP addresses. The IP Address Owner has to submit a complaint about the removal of their IP address to various DNSBLs and SURBLs.

How an IP blacklist integrates with an Email service?

The process is simple.

  • Suppose you send an email from [email protected] to some user Muhammed.
  • Mike's mail server will determine the sender's IP address and resolve it into the domain name.
  • Mike's mail server checks both the domain and the sender's IP address in the IP/domain blacklist database.
  • If the IP or domain is blacklisted, your email will most likely land in Mike's spam/junk mail folder without the message being scanned.
  • If the IP or domain is already in the repetitive spam sender list, the ISP's spam filters will reject its message, meaning it won't even reach Mike's spam folder.

Why is my IP address blacklisted?

A spam black list is a list of IP addresses that send out spam.

Some IP addresses send emails that appear to be from your recipient but are really not. They look like they are coming from your address.

Your IP may be in a single blacklist or multiple backlists.

That's the case. Each blacklist is managed independently, and each has its own criteria for listing or delisting IP addresses.

There are several reasons that your IP is on the blacklist.

  1. The primary reason for a site to get blacklisted is the virus, malware, and sending many spam emails.

If you run a mail server but are not properly configuring it to prevent spam, and you end up sending spam, your IP address becomes blacklisted.

Maybe you've been trying to purchase email lists with lots of incorrect or spam email addresses for a long time. You've probably wasted a lot of time on it.

A lot of the emails you get in your inbox are marked as spam.

Someone is using your email address for spam.

There is another scenario where your IP is on the blacklist, even if you didn’t do anything wrong.

If the server is getting an invalid address, check the settings in your network configuration.

You could check the logs for all the banned IP addresses and identify the ones assigned by your internet service provider.

Spamming and bot activities, although not something you want to be doing, are part of everyday life for eCommerce sites.

Only your Internet Service Provider knows who had that IP address before assigning it to you.


  1. If you're not following best practices for website building, then chances are that you'll end up getting blacklisted by a legitimate website.

Some reasons may have played a role in this regard. If your website is spammy or if you are getting backlinks from spammy websites.

Your website is suspected of being hacked.

Once the website is added to the search engine's black list, it will disappear from the internet.


How to use the IP Blacklist, Email Blacklist, and Domain Blacklist Check to check your IP status or perform the IP blacklist lookup?

  • Several online tools are free and can check that a URL, IP address, or email server IP is in the public record with the DNSBL or SURBL databases.
  • Check the IP address associated with your current location to find out if it's blocked in a particular country.
  • Open the IP Blacklist & Email Blacklist Check tool.
  • Enter the URL, IP address, or email server IP address whose status you want to check.
  • There's an option to add the site to your blacklist.
  • You’ll only need 20 to 40 seconds to perform the IP blacklist lookup.
  • Blacklists and whitelists both keep you from accessing some websites. They can also let you access websites that you might not normally be able to access.


Our team does not manage, run, or have any direct affiliation with any blacklists.

When you try to access the internet from our server, we will only provide a single platform for checking an IP address's blacklist status on

We have a no-registration system. We don’t charge for removing links from our site.

A whitelist is useful only if it's comprehensive so that no undesired URLs get through.

How do you get off the blacklist, or what to do if your IP is blacklisted?

  1. The only way to get off the blacklists is by clearing your name from being blacklisted. You need to check that your system is clean from viruses and malware and no unauthorized traffic is going out from your system.

Find out where your IP is blacklisted and contact them.

It’s a good idea to investigate why their system thinks you’re a threat. If they are right about you, you will not be allowed on their site again.

Listing in the blacklists is mostly based on vague guidelines.

Check each of them. The majority of the blocklists allow you to submit a removal request.

Each blacklist has a different way to raise the removal request.

Submitting the removal request is an attempt from your end.

No matter how many requests are submitted, the Blacklist maintainer does not guarantee to honor all your requests.

What if my IP address remains on a blacklist?

  1. You'll learn how to find out what your email IP address is, how to prevent it from being blacklisted for spamming and how to ensure that you're not the one sending those annoying, intrusive,

If you are a home user, having your IP address on the blacklist would not make much difference.

However, if you are running a business or have a mail server, you should delist your IP address.

Check your computer for viruses and malware and make sure your mail server is configured correctly.

How to blacklist check an IP address or a domain?

1. A blacklisted IP address or domain could cause your business to lose credibility, reputation, and ultimately customers. Find out if a file is compressed I have to find out if a given file is compressed by default or not. I've seen this question but the code does not work. Using C# and.Net

This free service checks whether your IP address or domain is blacklisted. Simply key in your IP address or domain name and the checker will verify the given address across the popular 10+ blacklist databases and let you know if your domain or site is blacklisted or not.

How to fix a blacklisted IP/Domain/Email?

Check and figure out the services/blacklist provides that have blacklisted your site.

When you want to delete your site, you will have to make a request to your web host that you would like them to delist your domain name.




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