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Accessibility

· 13 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.
SCORE
60
GRADE
D
FIX
5
REVIEW
5
PASS
3
INFO
0
Checks
13
3 PASS 5 REVIEW 5 FIX
D
Landmark Structure
Action
5 landmarks
FIX
5 landmarks
Critical::
No <main> landmark found
Screen reader users cannot quickly navigate to the primary content. Wrap your main content in <main>.
Info::
2 <nav> landmark(s) found
Warning::
2 of 2 <nav> elements are unlabeled
Multiple navigations need aria-label to distinguish them for screen readers.
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 header NAV MAIN (missing!) ASIDE CONTENTINFO footer

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

Multiple navigations need aria-label to distinguish them for screen readers.

Why this matters

Some <nav> elements lack aria-label — screen-reader users hear 'navigation' multiple times with no way to distinguish them.

Learn more ▾

When a page has multiple <nav> regions (primary, footer, breadcrumb), each needs aria-label or aria-labelledby. AT users navigate by landmark; identical 'navigation' announcements force them to enter each one to discover purpose.

Source: WAI-ARIA Authoring Practices

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

D
Favicon & Branding
Action
4 icon(s) detected
FIX
4 icon(s) detected
Info::
favicon.ico present at site root
Info::
HTML icon links detected
Info::
No apple-touch-icon detected
iOS devices use this when users add your site to their home screen. Add <link rel='apple-touch-icon' sizes='180x180' href='/apple-touch-icon.png'>.
✓ favicon.ico Present
✓ PNG Icons Present
✗ Apple Touch Missing
✗ SVG Favicon Missing
✓ Manifest Icons Present
✗ Multiple Sizes Missing
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::
2 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 2 <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.
C
Heading Hierarchy
Action
21 headings, 1 skip(s)
REVIEW
21 headings, 1 skip(s)
Critical::
No H1 heading found
Every page should have one H1 that describes the page content.
Warning::
Heading level skipped: H2 → H4 (missing H3)
Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.
  • H2 In Founders’ Words
  • H2 Be in the room with …
  • H2 All partners were YC founders first
  • H2 Knowledge & News
  • H3 Billion-Dollar Unpopular Startup Ideas
  • H3 Andrej Karpathy: Software Is Changing (Again)
  • H3 How To Build The Future: Sam Altman
  • H3 YC Partners Answer Your Questions
  • H4 Startup News
  • H4 Paul Graham Essays
  • H3 Andrej Karpathy: Software Is Changing (Again)
  • H3 How To Build The Future: Sam Altman
  • H3 YC Partners Answer Your Questions
  • H2 Billion-Dollar Unpopular Startup Ideas
  • H4 Startup News skipped
  • H4 Paul Graham Essays
  • H2 Footer
  • H3 Make something people want.
  • H3 Programs
  • H3 Resources
  • H3 Company

Every page should have one H1 that describes the page content.

Why this matters

No H1 means screen-reader users can't identify the page's primary topic, and Google's content-extraction degrades.

Learn more ▾

The H1 is the document title for assistive tech and a strong signal to search engines about page topic. Pages without one force screen readers to fall back to the <title> attribute or page chrome. Add a single H1 that names the page's primary subject.

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
404 Error Page
HTTP 404, custom page
REVIEW
HTTP 404, custom page
Info::
Correct 404 status code returned
Got: HTTP 404
Info::
Custom styled 404 page
Info::
Navigation links present on 404 page
Info::
Homepage link present on 404 page
404 Page Quality ✓ Custom 404 Page
Status Code HTTP 404 ✓Page Title File Not Found | Y Combinator ✓Custom Styling ✓Navigation ✓Homepage Link ✓Search Form ✗
C
Web Manifest
Action
Valid manifest
REVIEW
Valid manifest
Info::
Name present: Bookface
Warning::
No 192x192 icon
A 192px icon is required for PWA installation.
Info::
Display mode: standalone
PWA Install Criteria Not Installable
Name Bookface ✓192×192 icon ✗512×512 icon ✗Start URL https://bookface.ycombinator.com ✓Display Mode standalone ✓
Name Bookface Display Mode standalone Theme Color #ed702d Background Color #f6f6ef Icons 1 icon(s)
C
Color Contrast (Screenshot)
Action
20 text elements analyzed, 1 fail WCAG AA
REVIEW

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

19 pass 1 fail WCAG AA 1 pass AA only
title Y Combinator
1.00:1
#000000
on
#000000
needs 4.5:1 (normal text)
16px · top of page (header area)
Show all checked elements (20)
ElementRatioRequiredFGBGResult
h2 In Founders’ Words19.18:13.0:1
#000000
#F5F5EE
Pass
h2 Be in the room with…19.18:13.0:1
#000000
#F5F5EE
Pass
h2 All partners were19.18:13.0:1
#000000
#F5F5EE
Pass
h2 YC founders first19.18:13.0:1
#000000
#F5F5EE
Pass
h2 Knowledge & News19.18:13.0:1
#000000
#F5F5EE
Pass
h2 Billion-Dollar Unpop…19.18:13.0:1
#000000
#F5F5EE
Pass
h2 Footer19.18:13.0:1
#000000
#F5F5EE
Pass
h3 Billion-Dollar Unpop…19.18:13.0:1
#000000
#F5F5EE
Pass
h3 Andrej Karpathy: Sof…19.18:13.0:1
#000000
#F5F5EE
Pass
h3 How To Build The Fut…19.18:13.0:1
#000000
#F5F5EE
Pass
h3 YC Partners Answer Y…19.18:13.0:1
#000000
#F5F5EE
Pass
h3 Andrej Karpathy: Sof…19.18:13.0:1
#000000
#F5F5EE
Pass
h3 How To Build The Fut…19.18:13.0:1
#000000
#F5F5EE
Pass
h3 YC Partners Answer Y…19.18:13.0:1
#000000
#F5F5EE
Pass
h3 Make something peopl…19.18:13.0:1
#000000
#F5F5EE
Pass
h3 Programs19.18:13.0:1
#000000
#F5F5EE
Pass
h3 Resources19.18:13.0:1
#000000
#F5F5EE
Pass
h3 Company19.18:13.0:1
#000000
#F5F5EE
Pass
title Y Combinator1.00:14.5:1
#000000
#000000
Fail
span Apply for Summer 202…6.81:14.5:1
#000000
#93938F
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.

A+
Alt Text Quality
All 85 images OK
PASS
All 85 images OK
Info::
85 image(s) with good alt text
85 images 85 good alt text
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.
A+
Lighthouse Accessibility Audits
Score 98/100 — 1 failing, 21 passed
PASS
98

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.

Best practices

One main landmark helps screen reader users navigate a web page. Learn more about landmarks.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html html

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>`
●`[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.
●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
●Background and foreground colors have a sufficient contrast ratio
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links have a discernible name
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●Touch targets have sufficient size and spacing.
●Heading elements appear in a sequentially-descending order
●`<video>` elements contain a `<track>` element with `[kind="captions"]`
●Image elements do not have `[alt]` attributes that are redundant text.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○Deprecated ARIA roles were not used
○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
○`[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
○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 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
○Links are distinguishable without relying on color.
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○No element has a `[tabindex]` value greater than 0
○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
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Uses ARIA roles only on compatible elements
○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.
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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