adblockplus.org website review

About 207 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 1.1 s faster on a phone.

Your mobile performance score is 76 (desktop: 98). Pages that score under 90 lose visitors before the first paint.

6 files block the first paint until they finish downloading. Deferring or inlining them could save about 950 ms.

35 files are served with short cache lifetimes, so returning visitors download them again (250 KiB).

Google Tag Manager costs a phone 261 ms of main-thread work and 422 KiB of downloads while your page loads. Loading it after the page is usable, or only on the pages that need it, takes that off the critical path.

2 third-party services load with your homepage (Google Tag Manager and Google Analytics), adding 422 KiB and 261 ms of main-thread time.

3 long tasks block the main thread while loading, the longest for 130 ms. During a long task the page ignores taps.

1 image could be 13 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

Critical files load one after another instead of in parallel (3 chains). Preconnecting to key origins and preloading the hero image shortens the chain.

Scripts make the browser recalculate the layout repeatedly while the page loads, which wastes processor time on phones.

Your largest element takes 5.8 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the image “Adblock Browser logo”.

The page becomes fully interactive after 5.9 s. Good is under 3.8 s.

Visually, the page fills in at 3.8 s (Speed Index). Good is under 3.4 s.

13 images have no width and height attributes, so the layout jumps as each one loads.

Over the last 25 four-week periods to 2026-10-03, real Chrome visitors' tap response (inp) went from 101 ms to 103 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Over the last 25 four-week periods to 2026-10-03, real Chrome visitors' largest content (lcp) went from 1.3 s to 1.3 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

1 image further down the page (21 KiB) download before anyone scrolls to it. Adding loading="lazy" lets the first screen load first.

By the Sustainable Web Design model, a visit to your homepage emits about 0.21 g of CO₂e: 24.8 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

Form elements must have labels: 2 elements on the page fail this check, rated critical by axe-core.

3 text elements don't have enough contrast against the background to read easily, especially outdoors on a phone.

1 image has no alt text, which hurts accessibility and image search.

All page content should be contained by landmarks: 11 elements on the page fail this check, rated moderate by axe-core.

Landmarks should have a unique role or role/label/title (i.e. accessible name) combination: 2 elements on the page fail this check, rated moderate by axe-core.

Document should not have more than one banner landmark: 1 element on the page fails this check, rated moderate by axe-core.

The page has no <main> landmark, so screen-reader users cannot jump straight to the content.

Headings skip levels (h2 → h5), which makes the page harder to scan with a screen reader.

No structured data (JSON-LD), so Google can't show rich results such as your logo, ratings or FAQs.

There are 4 <h1> headlines (“Surf the web with no annoying ads”, “Block ads with Adblock Plus for Safari on iOS” and “Get Adblock Browser”). One clear main headline is easier for people and search engines.

No XML sitemap at https://adblockplus.org/sitemap.xml, so Google discovers your pages only by following links.

No favicon is declared in the HTML, so browser tabs and Google's mobile results may show a generic icon.

3 links use generic text like “click here” or “learn more”, which tells Google nothing about the page behind them.

No twitter:card tag. X falls back to Open Graph, which is set, so this is minor.

The homepage links to 52 pages on adblockplus.org and 20 external pages.

There is no Organization (or LocalBusiness) JSON-LD, so search engines and AI assistants have no machine-readable facts about who runs the site: its name, logo, profiles and contact details.

There is no /llms.txt, a short Markdown guide to your key pages for AI tools (llmstxt.org). It is optional and few AI tools read it yet, so treat it as a cheap extra.

/en, /ar, /de, /el, /es and /fr and 7 others declare the homepage as their canonical URL, which tells Google they are copies of the homepage and keeps them out of search results. A site-wide template setting usually causes this.

/, /en, /ar, /el, /hu and /ja and 2 others all use the title “Adblock Plus | The world's #1 free ad blocker”. Search engines can't tell which page to show for a search, so each competes with the others.

/en/about has no meta description, so Google writes the search snippet from whatever text it finds.

/en, /ar, /el, /hu, /ja and /ko and 1 other use the same meta description. A description written for each page earns more clicks.

We fetched 15 pages linked from your homepage (of 39 found) and read each the way a search engine does.

2 images are displayed at the wrong aspect ratio, so they look stretched or squashed.

No Content-Security-Policy header, the main browser-side defence against injected scripts.

X-Content-Type-Options: nosniff is missing, so browsers may guess file types.

No Referrer-Policy header, so full URLs can leak to the sites you link to.

No Permissions-Policy header to switch off camera, microphone and location for embedded content.

There is no /.well-known/security.txt telling researchers how to report a security problem to you.

adblockplus.org's DNS answers are not signed. DNSSEC stops attackers forging them to send visitors or email elsewhere; most registrars switch it on in a click, though most sites still run without it.

On a phone, there is no call to action on the first screen: visitors have to scroll to find out what to do next.

Social proof on the homepage: 3 trust badges. Pairing it with named testimonials or customer logos makes it far more convincing.

No analytics or tag manager detected in the HTML, so you can't measure whether any of these fixes work.

No phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach you.

No guarantee or risk reducer (money-back, free trial, no credit card) is mentioned, which is often what tips a hesitant visitor.

The homepage carries about 363 words of visible text.

Email authentication: SPF record 25 points, plus 15 when it ends in -all (10 for ~all); DMARC record 25, plus 25 for a reject policy (15 for quarantine); a DKIM key on a common selector 10.

Before a visitor clicks anything, the page loads Google Analytics and Google Tag Manager (measured from a US location before any click). No consent tool was detected. Visitors from the EU, UK and several US states must be asked first.

Opening the homepage sets 3 cookies (measured from a US location before any click).

No known cookie consent tool loads with the page. Some sites build their own banner, and some only show one to visitors from the EU.

Loading the homepage contacts 2 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.