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Landon Diaz
Landon Diaz

Fastest Way To Detect Adblock _BEST_

Using JavaScript to verify whether an ad has been banned, scanning for the presence of adblocker extensions or plugins, or looking for blocked requests to well-known ad-serving domains are some of the ways websites identify adblockers.

fastest way to detect adblock

Yes, there are ways to get around adblocker detection on websites, such as employing anti-adblocker extensions or browser plugins, changing the user-agent string in the browser, or utilizing a proxy or VPN service. Certain websites, however, may use defense mechanisms to identify and prevent such bypass techniques.

When an ad blocker is detected, a website may show pop-ups or notifications urging the user to turn it off or add the site to their whitelist in order to view the content. Some websites might even prevent users from accessing the material at all until the adblocker is turned off.

By employing anti-adblocker extensions or browser plugins, changing the user-agent string in their browser, or by using a proxy or VPN service, users can avoid being detected as using an adblocker. However, it is crucial to note that some websites may deploy countermeasures to detect and stop such bypass methods.

The money that websites can make from advertising is decreased by adblockers because people who block ads do not view or click on them. This may lead to a decline in the quantity or quality of free material and may have a severe impact on the revenue streams of websites that rely significantly on advertising.

I would like to be able to detect if the user is using adblocking software when they visit my website. If they are using it, I want to display a message asking them to turn it off in order to support the project, like this website does.

If you enter to that site and your browser has some kind of adblock software enabled, then the site instead of showing the actual ads shows a little banner telling the users that the ad revenue is used for hosting the project and they should consider turning Adblock off.

To detect if the user is blocking ads, all you have to do is find a function in the ad javascript and try testing for it. It doesn't matter what method they're using to block the ad. Here's what it looks like for Google Adsense ads:

An efficient way to check if there is an adblock:Simply check if there is adblock enabled by trying to trigger the URL of google ads. If yes then run the callback_has_adblock, if not then run the callback_no_adblock. This solution costs one request more but at least it always works:

I know there are already enough answers, but since this question comes up on Google searched for "detect adblock" at the topic, I wanted to provide some insight in case you're not using adsense.

Specifically, with this example you can detect if the default Adblock-list provided by Firefox Adblock is used. It takes advantage that in this blocklist there is an element blocked with the CSS id #bottomAd. If I include such an element in the page and test for it's height, I know whether adblocking is active or not:

As can be seen, I'm using setTimeout with at least a timeout of 1ms. I've tested this on various browsers and most of the time, directly checking for the element in ready always returned 0; no matter whether the adblocker was active or not. I was having two ideas about this: either rendering wasn't yet done or Adblock didn't kick in yet. I didn't bother to investigate further.

I noticed previous comments uses google adsense as object to test. Some pages don't uses adsense, and using adsense block as test is not really a good idea. Because adsense block may harm your SEO. Here is example how I detect by adblocker simple blocked class:

Most adblocker cancel HTTP request to ads.js and make 0px for the element but sometime adblocker removed the DOM, and some answer above will fail because not checking existence of the element.

Despite the age of this question, I recently found it very useful and therefore can only assume there are others still viewing it. After looking here and elsewhere I surmised that the main three client side checks for indirectly detecting an ad blocker were to check for blocked div/img, blocked iframes and blocked resources (javascript files).

Ad blockers are very smart these days, they can even spoof ad server requests with redirects and return fake responses. Below is the only good solution I've found and it works with even the best ad blocker extensions (like uBlock Origin, Adblock Plus) and in-browser ad blockers (like Brave, Opera) that I've tested. It works with those that block access to the ad server, as well as those that spoof it. It works with any ad provider, not just Google! It uses Google ad service exclusively for detection, because it's blocked by all blockers, its availability is always high and it's fast.

The smartest ad blockers don't block, they redirect requests and return fake 'successful' responses. As of now, Google never redirects the request, so we can detect the redirect and thus the blocker.

By detecting ad blockers, website owners can ensure that their ads are only being shown to users who have not blocked them. This allows them to protect their revenue and maintain the financial sustainability of their website.

Anti-ad blocker technology is a business now. There are a lot of providers offering applications, plugins, and scripts for publishers to put on their websites. Many ad-block detection scripts are available online which are easy to implement.

You check the IAB GitHub page to access the detect ad-block script. The JavaScript (adblockDetector.js) has been tested on Chrome, Firefox, Internet Explorer and Safari Browser. You can find the installation and implementation details on the GitHub page of the IAB.

F**kAdBlock also provides a free ad blocker detection script. Publishers can check out the GitHub page for the code and steps to implement it. The code presented by F**kAdBlock is more formalized. There are function declarations for ad block detection and no ad block detection. And then function definition, respectively.

The script works perfectly for AdBlock and AdBlock Plus. Also, it supports multiple web browsers (Chrome, Safari, Firefox, Internet Explorer, and Opera). Here is an example of how to detect ad blockers using the F**kAdBlocker code.

Publishers such as Forbes and Business Insider also display anti-ad blocker messages once they detect ad blockers. In order to access the content, the user needs to disable the ad blocker. And according to data, half of the users agree to disable their ad blocker to view the content.

Display ads are important for everyone (users, publishers, and advertisers). Blocking ads altogether can make the existence of free information on the web untenable. Publishers can detect ad blockers.

For publishers, ad blocking software ultimately leads to a loss of revenue. To calculate the exact financial effect of ad blocking software, digital publishers need the ability to detect when people are using an ad blocker. Once they have detected which users are blocking ads, they can begin to mitigate the damage and recover lost revenue.

If publishers can't find a way to convince web users to stop using ad blockers, how can they best conduct ad blocker detection to ensure minimal loss to revenue and maximum return on investment for advertisers?

Even if publishers are getting a decent ROI for the advertising efforts, if they are encountering ad blocker extensions- which it is almost certain they are- they are losing valuable marketing revenue. As ad-blocking technology has expanded, so too has anti-ad block technology. There are now several known applications, plugins, and JavaScript codes that publishers can use for ad block detection.

Ad blocking works by placing what is known as 'bait content' within the pages of a website. Although this bait content is invisible to users-often being as small as a pixel in size, this code appears to ad blockers as advertising content. After a web page has finished loading, the ad blocking code checks the properties of the bait content to ascertain whether it is still visible. If the bait content has been hidden, the detection code knows that an ad blocker is active.

For publishers not confident in writing their own script looking for an easily implementable adblock detection script, the following are readily available online and should easily integrate into their web pages.

The Interactive Advertising Bureau (IAB) is an independent, international, research and development consortium comprised of digital publishers and ad technology firms. IAB Tech Lab aims to reduce friction associated with the digital advertising and marketing supply chain. From this mission was borne the IAB ad-block detection script.

F**kAdBlock is a more formalized ad blocking detection code, developed by the online community also known as BlockAdBlock. Publishers can reference the F**kAdBlock GitHub page for the code and example implementation.

Around 30% of publishers are now using scripts to detect ad blockers. But where to next? With adopters of ad blockers clearly adverse to display ads, how can publishers navigate this, with the aim of both reclaiming potentially lost revenue while also ensuring not to alienate site visitors?

Native ads are another effective way to circumvent adblock tech on a website. Native ads are designed to resemble the other content on the website. In this way, in-feed ads are difficult for adblock software to detect, as they match the editorial content in form and function.

When evaluating how to work around adblock software, publishers and advertisers must keep in mind that users have the right to use any plugin or extension they choose to enhance their web experience.

Incidentally, it is quite funny that the very same list AdBlock uses to hide ads can be used against it. The list is a double-edged sword; while it allows ad blockers to detect ads and stop them from being displayed, it is also relatively easy for publishers to identify which elements of their website are being blocked. What could those elements be? 041b061a72


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