How Do I Whitelist a Domain but Keep Blocking Ads Everywhere Else?

If you've ever encountered the error ERR_BLOCKED_BY_CLIENT while browsing, you know how frustrating it can be to have content blocked unexpectedly. This error often happens because of browser extensions or client-side ad blockers that keep annoying ads away — but sometimes they block content you actually want to see.

In this post, we’ll explain what ERR_BLOCKED_BY_CLIENT means in plain English, why extensions block certain pages, and how you can keep ad blocking on everywhere except https://highstylife.com/why-is-a-random-looking-domain-like-yfdnzfa-com-getting-blocked/ https://highstylife.com/why-is-a-random-looking-domain-like-yfdnzfa-com-getting-blocked/ for a few trusted sites using domain whitelisting (or allowlisting). We’ll also share a safe troubleshooting workflow to avoid common mistakes and confusion.
Understanding ERR_BLOCKED_BY_CLIENT in Plain English
The error ERR_BLOCKED_BY_CLIENT basically means "The website’s request was blocked by your browser’s client-side software." Usually, this client is a browser extension like an ad blocker or privacy tool.

Here’s what’s happening:
A webpage tries to load images, scripts, or ads from domains that your adblocking extension recognizes as sources of unwanted or intrusive content. Your extension intervenes and blocks those requests. Your browser shows ERR_BLOCKED_BY_CLIENT instead of letting the blocked items load.
This is a good thing most of the time because it speeds up browsing and reduces distractions. But it can also block content you want — like a restaurant menu or interactive features on a trusted site — if the extension treats that site like an ad network.
Why Do Extensions Block Pages and What Are They Blocking?
Browser extensions like uBlock Origin, AdBlock Plus, or Ghostery use lists of known ad servers and trackers to block unwanted content automatically. They look for domains or URLs that regularly serve:
Banners and pop-up ads Video or audio ads that autoplay Tracking scripts that monitor your behavior Third-party cookies and widgets
For example, if you visit yfdnzfa.com, a domain with excessive or intrusive ads, your adblocker may block many of its resources to give you a cleaner experience.

Similarly, visiting a legitimate business site like nandosmenuuk.com might have embedded third-party ad scripts or trackers that get blocked by default — even if you just want to see their menu or opening hours.

But here’s a key common mistake: many users expect to see detailed restaurant menus, prices, or opening hours, but these are often not part of the blocked elements or are hosted on other third-party domains that may be blocked. Ad blockers don't cause missing content if it's not present on the site itself.
What’s the Difference: Whitelisting vs Disabling Protection?
When you hit ERR_BLOCKED_BY_CLIENT on a specific site and want to see all the content properly, you have two basic options:
Disable the ad blocker entirely: This turns off protection on all sites, exposing you to ads and trackers everywhere. Whitelist or allowlist only that specific domain: This keeps ad blocking active everywhere else, but allows content on the trusted domain to load uninterrupted.
Whitelisting is the preferred method since it balances privacy and performance with convenience on sites you trust.
How to Whitelist (Allowlist) Only One Domain Using Browser Extensions
Here’s a straightforward, safe workflow you can follow to whitelist a domain (e.g., nandosmenuuk.com) so you keep ad blocking on everywhere else.
Step 1: Test in Incognito or Private Mode Open a new Incognito or Private window in your browser. Try visiting the site that’s giving you trouble (e.g., nandosmenuuk.com). If the site works fine here, the issue is likely with your extensions or cache.
Note: Extensions are often disabled by default in incognito mode, which is why this helps isolate the problem.
Step 2: Identify Which Extension Is Blocking Content Disable your ad blockers one at a time — don’t turn them all off at once! — and reload the page each time to see if it works. When the site loads properly, you’ve found the extension causing ERR_BLOCKED_BY_CLIENT. Step 3: Add the Site to the Extension’s Whitelist or Allowlist
Most popular ad blockers let you create site exceptions:
ExtensionHow to Whitelist a Domain uBlock Origin Click the extension icon → click the power button to disable blocking on the current site → reload the page AdBlock Plus Click the extension icon → “Don’t run on pages on this site” → confirm → reload Ghostery Click the ghost icon → toggle off blocking for the site → reload
Once whitelisted, the domain is excluded from blocking rules, but your ad blocker remains active on all other sites—a perfect balance.
Step 4: Check Again
Reload the site normally (non-incognito) and verify that all desired content loads and ERR_BLOCKED_BY_CLIENT does not appear.
Common Mistakes to Avoid Don’t disable all protections without understanding the risk. Temporarily disabling an extension is fine for troubleshooting, but leaving it off exposes you to ads and trackers everywhere. Don’t clear all settings blindly. Resetting or clearing all extension settings can cause confusion later. Instead, make one change at a time. Don’t expect missing restaurant menus or prices to be caused by ad blockers. If a site like yfdnzfa.com or nandosmenuuk.com doesn’t show menu details or prices, that content might simply not be available or is blocked server-side, not by your browser. Why You Want to Keep Ad Blocking On
Ad blocking improves your web experience by:
Reducing intrusive ads and pop-ups Speeding up page load times Enhancing privacy by blocking trackers Preventing malware that sometimes comes bundled with ads
That’s why it’s best to keep ad blocking on globally and only allowlist only one domain when https://instaquoteapp.com/how-do-i-check-extension-permissions-before-i-trust-it/ https://instaquoteapp.com/how-do-i-check-extension-permissions-before-i-trust-it/ necessary.
Price Example: Understanding Why Certain Elements Might Be Blocked
Imagine a restaurant menu web page tries to load price details costing:
Menu ItemPrice Starter£4.50 Main Course£10.99 Dessert£3.75
If the ad blocker sees that the request fetching prices is from a domain tagged as an ad server, it may block it, causing missing details. Whitelisting the related domain solves this while keeping blockers working on ads elsewhere.
Summary Checklist: Keep Your Browser Protection Safe and Effective Identify what changed before the problem started—did you install new extensions or update them? Test the site in Incognito mode to isolate extension issues. Disable extensions one by one to find which blocks the content. Whitelist the trusted domain using your ad blocker’s site exception features. Reload and confirm content loads without ERR_BLOCKED_BY_CLIENT. Avoid disabling protection globally—only whitelist trusted sites. Remember, missing data like menus or prices may not be caused by blockers. Final Thoughts
Understanding ERR_BLOCKED_BY_CLIENT and the way browser extensions block content helps you troubleshoot calmly and effectively. Whitelisting (or allowlisting) a domain like nandosmenuuk.com while keeping ad blocking active everywhere else preserves your browsing privacy without losing access to the content you want.

If you run into problems on unfamiliar domains like yfdnzfa.com, always be cautious—some sites are known for aggressive ads or worse. Whitelist only sites you fully trust.

With these tips and your new troubleshooting checklist, you can enjoy a cleaner, faster, and safer web while still seeing important content uninterrupted.