Skip to content
https://www.1blocker.com

Accessibility

· 13 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.
SCORE
56
GRADE
D
FIX
6
REVIEW
5
PASS
2
INFO
0
Checks
13
2 PASS 5 REVIEW 6 FIX
D
Landmark Structure
Action
1 landmarks
FIX
1 landmarks
Critical::
No <main> landmark found
Screen reader users cannot quickly navigate to the primary content. Wrap your main content in <main>.
Info::
1 <nav> landmark(s) found
Info::
No banner (header) landmark
Info::
No contentinfo (footer) landmark
Warning::
Skip navigation link is missing (WCAG 2.4.1)
Add a skip link as the first focusable element so keyboard users can bypass repeated navigation.
Page Structure — as a screen reader sees it
BANNER (missing!) NAV MAIN (missing!) CONTENTINFO (missing!)

Screen reader users cannot quickly navigate to the primary content. Wrap your main content in <main>.

Why this matters

Without a <main> landmark, screen-reader users can't skip past the navigation to the page content — every page starts with re-reading the menu.

Learn more

The <main> element marks the page's primary content area. Assistive tech offers a 'jump to main' shortcut — but only if <main> exists. Without it, every page navigation forces re-reading the header. Wrap your primary content in a single <main>.

Source: WAI-ARIA / WCAG 2.4.1

Add a skip link as the first focusable element so keyboard users can bypass repeated navigation.

Why this matters

Without a skip-nav link, keyboard users tab through every nav item before reaching content — every page, every visit.

Learn more

WCAG 2.4.1 (Bypass Blocks) requires a mechanism to skip past repeated content. The standard implementation is a 'Skip to main content' link that's the first focusable element, visually hidden until focused. Three lines of HTML + four of CSS.

Source: WCAG 2.1 SC 2.4.1

F
404 Error Page
Action
HTTP 404, bare page
FIX
HTTP 404, bare page
Info::
Correct 404 status code returned
Got: HTTP 404
Warning::
Bare server default 404 page
The 404 page has no custom styling. Users hitting a broken link see a generic error with no way to navigate back. Add a custom 404 page with your site navigation and a search bar.
404 Page Quality Default 404 Page
Status Code HTTP 404 Page Title Tilda Custom Styling Navigation Homepage Link Search Form
D
Web Manifest
Action
Not found
FIX
Not found
Info::
No web manifest found
No manifest at standard paths (/manifest.json, /site.webmanifest). A manifest is optional but enables PWA features like home screen installation and standalone display.

No web manifest found.

D
Dark Mode Support
Action
No dark mode signals
FIX
No dark mode signals
Info::
No dark mode signals detected
Consider adding CSS with @media (prefers-color-scheme: dark) and <meta name='color-scheme' content='light dark'>.
Info::
Detection limited to meta tags and inline styles
External CSS files may contain prefers-color-scheme rules not visible to this scan.
Dark ModeNo Dark Mode Detected
color-scheme meta Not set Dark theme-color Not set CSS indicators Not detected

Detection limited to meta tags and inline styles.

D
Print Stylesheet
Action
No print styles
FIX
No print styles
Info::
No print-specific styles detected
When users print this page, they get the screen layout including navigation and non-essential elements. Add @media print rules to hide navigation and optimize layout for paper.
Print Stylesheet No Print Styles
Print stylesheet Not found Inline @media print Not detected
F
Navigation UX
Action
No navigation patterns
FIX
No navigation patterns
Info::
1 navigation landmark(s) detected
Info::
No breadcrumbs, search, or skip link detected
These navigation aids help users orient themselves and find content efficiently, especially on large sites.
Breadcrumbs
Search
Skip Link
Labeled Navigation 1 <nav> element(s)
Back to Top
Hamburger Menu
Sticky Navigation Cannot reliably detect (CSS-based)
1 of 6 testable patterns navigation patterns detected. Limited navigation support. Consider adding breadcrumbs, search, and skip link.
B
Heading Hierarchy
10 headings, 1 skip(s)
REVIEW
10 headings, 1 skip(s)
Warning::
Multiple H1 headings (2 found)
A page should have only one H1. Multiple H1s dilute the document outline.
Warning::
Heading level skipped: H1 → H3 (missing H2)
Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.
  • H1 The Most Beautiful & Powerful Ad Blocker for Safari
  • H1 Introducing 1Blocker 6 duplicate H1
  • H3 Updated Design skipped
  • H3 Improved Blocking
  • H2 Multiple Filters
  • H2 Privacy Protection
  • H2 Designed for Safari
  • H2 1Blocker for Mac
  • H2 1Blocker for iOS
  • H2 1Blocker for visionOS

A page should have only one H1. Multiple H1s dilute the document outline.

Why this matters

Multiple H1s blur the page's primary topic — screen-reader users and Google both prefer one H1.

Learn more

HTML5's outline algorithm technically allows multiple H1s within sectioning content, but no browser implements it. In practice: one H1 per page. Use H2-H6 for subsections.

Source: WCAG 2.4.6 / Google Search Central

Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.

Why this matters

Skipping heading levels breaks the document outline — screen-reader users lose track of section nesting.

Learn more

Screen reader users navigate by jumping between headings (H1 → H2 → H3). Skipping (H1 → H3) breaks the sense of hierarchy. Use sequential levels even if you don't like the default styling — restyle with CSS instead. WCAG 1.3.1 (Info and Relationships) treats this as an A failure.

Source: WCAG 2.1 SC 1.3.1 / W3C WAI

B
Favicon & Branding
5 icon(s) detected
REVIEW
5 icon(s) detected
Info::
favicon.ico present at site root
Info::
HTML icon links detected
Info::
Apple touch icon present
Info::
Multiple icon sizes detected
favicon.ico Present
PNG Icons Present
Apple Touch Present
SVG Favicon Missing
Manifest Icons Missing
Multiple Sizes Present
C
Color Contrast (Screenshot)
Action
20 text elements analyzed, 2 fail WCAG AA
REVIEW

Analyzes text contrast against the actual rendered page, including background images, gradients, and overlays that CSS-based tools cannot detect.

18 pass 2 fail WCAG AA
title 1Blocker - The Most Beautiful & Powerful…
1.11:1
#000000
on
#111111
needs 4.5:1 (normal text)
16px · top of page (header area)
div 1Blocker
1.11:1
#000000
on
#111111
needs 4.5:1 (normal text)
16px · top of page (header area)
Show all checked elements (20)
ElementRatioRequiredFGBGResult
h1 The Most Beautiful &…16.69:13.0:1
#000000
#F2E4C6
Pass
h1 Introducing 1Blocker…16.43:13.0:1
#000000
#F8E0C2
Pass
h2 Privacy Protection13.79:13.0:1
#000000
#FEC880
Pass
h2 Designed for Safari13.79:13.0:1
#000000
#FEC880
Pass
h2 1Blocker for Mac13.79:13.0:1
#000000
#FEC880
Pass
h2 1Blocker for iOS13.79:13.0:1
#000000
#FEC880
Pass
h2 1Blocker for visionO…13.79:13.0:1
#000000
#FEC880
Pass
h3 Updated Design16.40:13.0:1
#000000
#FDDEC1
Pass
h3 Improved Blocking16.21:13.0:1
#000000
#FEDDB3
Pass
title 1Blocker - The Most …1.11:14.5:1
#000000
#111111
Fail
div 1Blocker1.11:14.5:1
#000000
#111111
Fail
a X / Twitter17.64:14.5:1
#000000
#EBEDD8
Pass
a Help17.58:14.5:1
#000000
#EDECD7
Pass
a Blog17.46:14.5:1
#000000
#EEEBD3
Pass
a Team17.06:14.5:1
#000000
#EEE8CD
Pass
a Press16.83:14.5:1
#000000
#EFE6C9
Pass
div Enjoy a cleaner, fas…16.47:14.5:1
#000000
#F3E2C2
Pass
span Try 1Blocker for Fre…16.98:14.5:1
#000000
#F6E5CA
Pass
div We’re excited to a…16.16:14.5:1
#000000
#FADDBF
Pass
span free update16.45:14.5:1
#000000
#FBDFC4
Pass

Methodology: The top 20 text elements by font size were checked. Background color was sampled from the desktop screenshot using a 5-point pattern. WCAG 2.1 AA requires 4.5:1 for normal text and 3:1 for large text.

B
Lighthouse Accessibility Audits
Score 82/100 — 6 failing, 21 passed
REVIEW
82

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Learn more div.t1115__content > div.t1115__buttons > a.t-btn > span.t-btnflex__text
Available in 1Blocker for Mac only. li.t908__item > div.t908__textwrapper > div.t908__descr > span
Founder and Editor-in-Chief of MacStories li.t-item > div.t525__textwrapper > div.t525__descr > div
Contributing Editor at HostingAdvice li.t-item > div.t525__textwrapper > div.t525__descr > div
Senior Contributor at Macworld li.t-item > div.t525__textwrapper > div.t525__descr > div
© 2015-2026 1Blocker LLC div.t389__maincontainer > div.t389__content > div.t389__col > div.t389__typo
2261 Market Street, Suite 5021, San Francisco, CA 94114 div.t134 > div.t-container > div.t-col > div.t134__descr

Low-contrast text is difficult or impossible for many users to read. Link text that is discernible improves the experience for users with low vision. Learn how to make links distinguishable.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
MacStories div.t525__textwrapper > div.t525__descr > div > a
HostingAdvice div.t525__textwrapper > div.t525__descr > div > a
Macworld div.t525__textwrapper > div.t525__descr > div > a

These are opportunities to improve the legibility of your content.

Navigation

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Updated Design ul.t1115__features > li.t1115__feature > div.t1115__feature-text-wrap > h3.t1115__feature-title

These are opportunities to improve keyboard navigation in your application.

Internationalization and localization

If a page doesn't specify a `lang` attribute, a screen reader assumes that the page is in the default language that the user chose when setting up the screen reader. If the page isn't actually in the default language, then the screen reader might not announce the page's text correctly. Learn more about the `lang` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html html

These are opportunities to improve the interpretation of your content by users in different locales.

Names and labels

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.t594 > div.t594__container > div.t-col > a.t-card__link div.t594 > div.t594__container > div.t-col > a.t-card__link
div.t594 > div.t594__container > div.t-col > a.t-card__link div.t594 > div.t594__container > div.t-col > a.t-card__link
div.t594 > div.t594__container > div.t-col > a.t-card__link div.t594 > div.t594__container > div.t-col > a.t-card__link
div.t594 > div.t594__container > div.t-col > a.t-card__link div.t594 > div.t594__container > div.t-col > a.t-card__link
div.t594 > div.t594__container > div.t-col > a.t-card__link div.t594 > div.t594__container > div.t-col > a.t-card__link
div.t594 > div.t594__container > div.t-col > a.t-card__link div.t594 > div.t594__container > div.t-col > a.t-card__link
div.t-col > div.t392__buttonwrapper > div.t392__btn > a.t392__link div.t-col > div.t392__buttonwrapper > div.t392__btn > a.t392__link
div.t-col > div.t392__buttonwrapper > div.t392__btn > a.t392__link div.t-col > div.t392__buttonwrapper > div.t392__btn > a.t392__link
div.t-col > div.t392__buttonwrapper > div.t392__btn > a.t392__link div.t-col > div.t392__buttonwrapper > div.t392__btn > a.t392__link

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Перейти к слайду 1 div.t-container > ul.t-slds__bullet_wrapper > li.t-slds__bullet > button.t-slds__bullet_body
Перейти к слайду 2 div.t-container > ul.t-slds__bullet_wrapper > li.t-slds__bullet > button.t-slds__bullet_body
Перейти к слайду 1 div.t-container > ul.t-slds__bullet_wrapper > li.t-slds__bullet > button.t-slds__bullet_body
Перейти к слайду 2 div.t-container > ul.t-slds__bullet_wrapper > li.t-slds__bullet > button.t-slds__bullet_body
Перейти к слайду 1 div.t-container > ul.t-slds__bullet_wrapper > li.t-slds__bullet > button.t-slds__bullet_body
Перейти к слайду 2 div.t-container > ul.t-slds__bullet_wrapper > li.t-slds__bullet > button.t-slds__bullet_body

These items highlight common accessibility best practices.

Interactive controls are keyboard focusable
Interactive elements indicate their purpose and state
The page has a logical tab order
Visual order on the page follows DOM order
User focus is not accidentally trapped in a region
The user's focus is directed to new content added to the page
HTML5 landmark elements are used to improve navigation
Offscreen content is hidden from assistive technology
Custom controls have associated labels
Custom controls have ARIA roles
`[aria-*]` attributes match their roles
`[aria-hidden="true"]` is not present on the document `<body>`
`[role]`s have all required `[aria-*]` attributes
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
`[role]`s are contained by their required parent element
`[role]` values are valid
`[aria-*]` attributes have valid values
`[aria-*]` attributes are valid and not misspelled
Buttons have an accessible name
Image elements have `[alt]` attributes
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
`button`, `link`, and `menuitem` elements have accessible names
ARIA attributes are used as specified for the element's role
`[aria-hidden="true"]` elements do not contain focusable descendents
Elements use only permitted ARIA attributes
Document has a `<title>` element
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
No element has a `[tabindex]` value greater than 0
Document has a main landmark.
Deprecated ARIA roles were not used
`[accesskey]` values are unique
Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
ARIA input fields have accessible names
ARIA `meter` elements have accessible names
ARIA `progressbar` elements have accessible names
Elements with the `role=text` attribute do not have focusable descendents.
ARIA toggle fields have accessible names
ARIA `tooltip` elements have accessible names
ARIA `treeitem` elements have accessible names
The page contains a heading, skip link, or landmark region
`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Definition list items are wrapped in `<dl>` elements
ARIA IDs are unique
No form fields have multiple labels
`<frame>` or `<iframe>` elements have a title
`<html>` element has a valid value for its `[lang]` attribute
`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
Input buttons have discernible text.
`<input type="image">` elements have `[alt]` text
Form elements have associated labels
The document does not use `<meta http-equiv="refresh">`
`<object>` elements have alternate text
Select elements have associated label elements.
Skip links are focusable.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
`[lang]` attributes have a valid value
`<video>` elements contain a `<track>` element with `[kind="captions"]`
Tables have different content in the summary attribute and `<caption>`.
All heading elements contain content.
Uses ARIA roles only on compatible elements
Image elements do not have `[alt]` attributes that are redundant text.
Identical links have the same purpose.
Elements with visible text labels have matching accessible names.
Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
`<td>` elements in a large `<table>` have one or more table headers.
A+
Alt Text Quality
All 26 images OK
PASS
All 26 images OK
Info::
26 decorative image(s) correctly marked
26 images 26 decorative
All images have appropriate alt text.
A+
Form Accessibility
No form controls
PASS
No form controls
Info::
No form controls on this page
No form controls found.
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

Send Feedback