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Accessibility

· 13 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.
SCORE
55
GRADE
D
FIX
6
REVIEW
4
PASS
3
INFO
0
Checks
13
3 PASS 4 REVIEW 6 FIX
D
Landmark Structure
Action
2 landmarks
FIX
2 landmarks
Critical::
No <main> landmark found
Screen reader users cannot quickly navigate to the primary content. Wrap your main content in <main>.
Warning::
No <nav> landmark found
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 MAIN (missing!) 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

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
Favicon & Branding
Action
1 icon(s) detected
FIX
1 icon(s) detected
Warning::
No favicon.ico at site root
Some older browsers, bookmark tools, and RSS readers look for /favicon.ico. Add one as a fallback.
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 Missing
✓ PNG Icons Present
✗ Apple Touch Missing
✗ SVG Favicon Missing
✗ Manifest Icons Missing
✗ Multiple Sizes Missing
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::
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
Back to Top
Hamburger Menu
Sticky Navigation Cannot reliably detect (CSS-based)
0 of 6 testable patterns navigation patterns detected. Limited navigation support. Consider adding breadcrumbs, search, and skip link.
B
Heading Hierarchy
12 headings, 2 skip(s)
REVIEW
12 headings, 2 skip(s)
Info::
Single H1 present
Warning::
Heading level skipped: H1 → H4 (missing H2)
Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.
Warning::
Heading level skipped: H2 → H4 (missing H3)
Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.
  • H4 Creators of TimescaleDB
  • H1 Postgres for live telemetry datasensor dataevent datatick data
  • H4 1 QUADRILLION skipped
  • H4 3 PETABYTES
  • H4 3 TRILLION
  • H2 Primitives
  • H2 In the wild
  • H2 Integrations
  • H2 Enterprise-ready
  • H2 Integrations
  • H2 Enterprise-ready
  • H4 Start building or migrate today skipped

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

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 Time-Series PostgreSQL at Petabyte Scale ✓Custom Styling ✓Navigation ✓Homepage Link ✓Search Form ✗
C
Color Contrast (Screenshot)
Action
20 text elements analyzed, 7 fail WCAG AA
REVIEW

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

13 pass 7 fail WCAG AA
h1 Postgres for live
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
32px · bottom of viewport
h2 Primitives
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
24px · bottom of viewport
h2 In the wild
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Integrations
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Enterprise-ready
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Integrations
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Enterprise-ready
1.66:1
#000000
on
#333333
needs 3.0:1 (large text)
24px · bottom of viewport
Show all checked elements (20)
ElementRatioRequiredFGBGResult
h1 Postgres for live1.66:13.0:1
#000000
#333333
Fail
h2 Primitives1.66:13.0:1
#000000
#333333
Fail
h2 In the wild1.66:13.0:1
#000000
#333333
Fail
h2 Integrations1.66:13.0:1
#000000
#333333
Fail
h2 Enterprise-ready1.66:13.0:1
#000000
#333333
Fail
h2 Integrations1.66:13.0:1
#000000
#333333
Fail
h2 Enterprise-ready1.66:13.0:1
#000000
#333333
Fail
title Time-Series PostgreS…19.50:14.5:1
#000000
#F5FF80
Pass
a Product19.50:14.5:1
#000000
#F5FF80
Pass
p Product19.98:14.5:1
#000000
#F9FFB3
Pass
p Tiger Cloud21.00:14.5:1
#000000
#FFFFFF
Pass
p Robust elastic cloud…20.65:14.5:1
#000000
#FDFDFD
Pass
p Open source18.59:14.5:1
#000000
#F1F1F1
Pass
p TimescaleDB19.60:14.5:1
#000000
#F7F7F7
Pass
p Time-series, real-ti…19.95:14.5:1
#000000
#F9F9F9
Pass
p Search20.12:14.5:1
#000000
#FAFAFA
Pass
p Vector and keyword s…18.10:14.5:1
#000000
#EEEEEE
Pass
a Industry19.95:14.5:1
#000000
#F9F9F9
Pass
p Crypto19.95:14.5:1
#000000
#F9F9F9
Pass
p Energy Telemetry19.43:14.5:1
#000000
#F6F6F6
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 5 images OK
PASS
All 5 images OK
Info::
5 image(s) with good alt text
5 images 5 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 95/100 — 2 failing, 25 passed
PASS
95

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
OIL & GAS div.flex > div.grid > div.flex > p.text-md
MANUFACTURING div.flex > div.grid > div.flex > p.text-md
TELECOMMUNICATIONS div.flex > div.grid > div.flex > p.text-md
UTILITIES div.flex > div.grid > div.flex > p.text-md

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
1 QUADRILLION div.flex > div.flex > div.flex > h4.tracking-[-0.02em]
START BUILDING OR MIGRATE TODAY div.bg-texture-electricYellow > section.w-full > div.flex > h4.font-bold

These are opportunities to improve keyboard navigation in your application.

○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
●`[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
●Form elements have associated labels
●`[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
●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links are distinguishable without relying on color.
●Links have a discernible name
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●No element has a `[tabindex]` value greater than 0
●Touch targets have sufficient size and spacing.
●Document has a main landmark.
●Deprecated ARIA roles were not used
●ARIA IDs are unique
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○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
○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
○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
○List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
○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.
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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