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https://asm.org

Accessibility

· 13 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.
SCORE
66
GRADE
D
FIX
5
REVIEW
2
PASS
6
INFO
0
Checks
13
6 PASS 2 REVIEW 5 FIX
F
Favicon & Branding
Action
2 icon(s) detected
FIX
2 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 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
1 navigation pattern(s)
FIX
1 navigation pattern(s)
Info::
Skip navigation link detected
Info::
2 navigation landmark(s) detected
Breadcrumbs
Search
Skip Link Skip link detected
Labeled Navigation 2 <nav> element(s)
Back to Top
Hamburger Menu
Sticky Navigation Cannot reliably detect (CSS-based)
2 of 6 testable patterns navigation patterns detected. Limited navigation support. Consider adding breadcrumbs, search, and skip link.
C
Color Contrast (Screenshot)
Action
20 text elements analyzed, 16 fail WCAG AA
REVIEW

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

4 pass 16 fail WCAG AA
h1 American Society for Microbiology
1.30:1
#000000
on
#002431
needs 3.0:1 (large text)
32px · mid-page
h2 ASM Microbe 2026: Where Science Meets In…
1.30:1
#000000
on
#002431
needs 3.0:1 (large text)
24px · bottom of viewport
h2 Our Work
1.30:1
#000000
on
#002431
needs 3.0:1 (large text)
24px · bottom of viewport
h2 ASM Membership That Supports Your Scienc…
1.30:1
#000000
on
#002431
needs 3.0:1 (large text)
24px · bottom of viewport · over background image/gradient
h3 Our Work
1.30:1
#000000
on
#002431
needs 3.0:1 (large text)
19px · bottom of viewport
h3 Discover Tools, Ideas & Industry Innovat…
1.30:1
#000000
on
#002431
needs 3.0:1 (large text)
19px · bottom of viewport · over background image/gradient
h3 ASM Journals Collection: Science Transce…
1.30:1
#000000
on
#002431
needs 3.0:1 (large text)
19px · bottom of viewport · over background image/gradient
h3 ASM Celebrates Lab Week 2026
1.30:1
#000000
on
#002431
needs 3.0:1 (large text)
19px · bottom of viewport · over background image/gradient
h3 How Magnetotactic Bacteria Power Biomedi…
1.30:1
#000000
on
#002431
needs 3.0:1 (large text)
19px · bottom of viewport · over background image/gradient
h3 2027 ASM Awards and Prize Are Now Open
1.30:1
#000000
on
#002431
needs 3.0:1 (large text)
19px · bottom of viewport · over background image/gradient
h3 CMPH Back to Basics Webinar: Urine Cultu…
1.30:1
#000000
on
#002431
needs 3.0:1 (large text)
19px · bottom of viewport · over background image/gradient
h3 New From ASM
1.30:1
#000000
on
#002431
needs 3.0:1 (large text)
19px · bottom of viewport
h3 ASM Microbe 2026 Registration Now Open
1.30:1
#000000
on
#002431
needs 3.0:1 (large text)
19px · bottom of viewport
h3 Discover ASM membership
1.30:1
#000000
on
#002431
needs 3.0:1 (large text)
19px · bottom of viewport
h3 Get published in an ASM journal
1.30:1
#000000
on
#002431
needs 3.0:1 (large text)
19px · bottom of viewport
h3 American Society for Microbiology
1.30:1
#000000
on
#002431
needs 3.0:1 (large text)
19px · bottom of viewport

7 contrast failures on background images/gradients

These failures are invisible to CSS-based accessibility tools like Lighthouse. The text may be fine on a solid background, but fails when rendered over an image or gradient.

Show all checked elements (20)
ElementRatioRequiredFGBGResult
h1 American Society for…1.30:13.0:1
#000000
#002431
Fail
h2 ASM Microbe 2026: Wh…1.30:13.0:1
#000000
#002431
Fail
h2 Our Work1.30:13.0:1
#000000
#002431
Fail
h2 ASM Membership That …1.30:13.0:1
#000000
#002431
Fail
h3 Our Work1.30:13.0:1
#000000
#002431
Fail
h3 Discover Tools, Idea…1.30:13.0:1
#000000
#002431
Fail
h3 ASM Journals Collect…1.30:13.0:1
#000000
#002431
Fail
h3 ASM Celebrates Lab W…1.30:13.0:1
#000000
#002431
Fail
h3 How Magnetotactic Ba…1.30:13.0:1
#000000
#002431
Fail
h3 2027 ASM Awards and …1.30:13.0:1
#000000
#002431
Fail
h3 CMPH Back to Basics …1.30:13.0:1
#000000
#002431
Fail
h3 New From ASM1.30:13.0:1
#000000
#002431
Fail
h3 ASM Microbe 2026 Reg…1.30:13.0:1
#000000
#002431
Fail
h3 Discover ASM members…1.30:13.0:1
#000000
#002431
Fail
h3 Get published in an …1.30:13.0:1
#000000
#002431
Fail
h3 American Society for…1.30:13.0:1
#000000
#002431
Fail
title American Society for…21.00:14.5:1
#000000
#FFFFFF
Pass
span Opens in a new windo…18.40:14.5:1
#000000
#F0F0EE
Pass
span Opens an external we…21.00:14.5:1
#000000
#FFFFFF
Pass
span Opens an external we…21.00:14.5:1
#000000
#FFFFFF
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
Landmark Structure
5 landmarks
PASS
5 landmarks
Info::
<main> landmark present
Info::
2 <nav> landmark(s) found
Warning::
1 of 2 <nav> elements are unlabeled
Multiple navigations need aria-label to distinguish them for screen readers.
Info::
Skip navigation link present
Page Structure — as a screen reader sees it
BANNER header NAV MAIN CONTENTINFO footer

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

A+
Heading Hierarchy
24 headings
PASS
24 headings
Info::
Single H1 present
  • H1 American Society for Microbiology
  • H2 ASM Microbe 2026: Where Science Meets Innovation
  • H2 Our Work
  • H2 ASM Membership That Supports Your Science & Career
  • H3 Our Work
  • H3 Discover Tools, Ideas & Industry Innovations at ASM Microbe 2026
  • H3 ASM Journals Collection: Science Transcends Borders
  • H3 ASM Celebrates Lab Week 2026
  • H3 How Magnetotactic Bacteria Power Biomedical Innovation
  • H3 2027 ASM Awards and Prize Are Now Open
  • H3 CMPH Back to Basics Webinar: Urine Cultures
  • H3 New From ASM
  • H4 The Origins of Microbial Metabolism on an Early Earth
  • H4 How Resilient Fungus Might Survive Mars and Space
  • H4 Decoding The Data: Contingency Tables—Part 2
  • H4 Cacti Fungal Endophytes May Help Cacao Tolerate Drought
  • H4 Phage JS1: The Virus Breaking the Rules
  • H4 Detrás del laboratorio – La microbiología clínica con Luis Plaza
  • H4 Microbial Metabolism of Food Allergens
  • H4 Celebrate Medical Laboratory Professionals Week
  • H3 ASM Microbe 2026 Registration Now Open
  • H3 Discover ASM membership
  • H3 Get published in an ASM journal
  • H3 American Society for Microbiology
A+
Alt Text Quality
All 3 images OK
PASS
All 3 images OK
Info::
1 decorative image(s) correctly marked
Info::
2 image(s) with good alt text
3 images 2 good alt text 1 decorative
All images have appropriate alt text.
A+
Form Accessibility
All 4 controls labeled
PASS
All 4 controls labeled
Info::
4 control(s) properly labeled
4 controls
4 labeled
0 placeholder only
0 unlabeled
ControlTypeLabelMethod
#osano-cm-dialog-toggle--category_MARKETINGcheckboxnone
#osano-cm-dialog-toggle--category_PERSONALIZATIONcheckboxnone
#osano-cm-dialog-toggle--category_ANALYTICScheckboxnone
#header-search-inputsearchSearch our sitefor/id
A
404 Error Page
HTTP 404, custom page
PASS
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
Info::
Search form present on 404 page
404 Page Quality ✓ Custom 404 Page
Status Code HTTP 404 ✓Page Title 404 Not Found | American Society for Microbiology ✓Custom Styling ✓Navigation ✓Homepage Link ✓Search Form ✓
A
Lighthouse Accessibility Audits
Score 92/100 — 2 failing, 25 passed
PASS
92

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.

Names and labels

When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
body > div#header > header.header__inner > button.header__toggle-nav body > div#header > header.header__inner > button.header__toggle-nav

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
body > div#header > header.header__inner > a.header__bookmarks body > div#header > header.header__inner > a.header__bookmarks

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.

○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]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●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
●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
●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
●Touch targets have sufficient size and spacing.
●Heading elements appear in a sequentially-descending order
●Document has a main landmark.
●Deprecated ARIA roles were not used
○`[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
○`[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
○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
○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.
○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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