Accessibility

· 24 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Checks

17 PASS 4 REVIEW 3 FIX

Dark Mode Support

Action

Theme color only

FIX

Theme color only

Theme-color present but no dark variant

A theme-color is set but no dark-specific variant was found. The browser toolbar may not adapt for dark mode users.

Got: #f6f6f4

No dark mode signals detected

Consider adding CSS with @media (prefers-color-scheme: dark) and <meta name='color-scheme' content='light dark'>.

Detection limited to meta tags and inline styles

External CSS files may contain prefers-color-scheme rules not visible to this scan.

Dark ModePartial Dark Mode

color-scheme meta Not set ✗Dark theme-color Not set ✗CSS indicators Not detected ✗

Detection limited to meta tags and inline styles.

Print Stylesheet

Action

No print styles

FIX

No print styles

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 ✗

Navigation UX

Action

No navigation patterns

FIX

No navigation patterns

1 navigation landmark(s) detected

No breadcrumbs, search, or skip link detected

These navigation aids help users orient themselves and find content efficiently, especially on large sites.

Breadcrumbs

Skip Link

Labeled Navigation 1 <nav> element(s)

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.

Mobile Keyboard & Autofill

Action

1/2 eligible field(s) missing autocomplete or inputmode

REVIEW

1/2 eligible field(s) missing autocomplete or inputmode

1 field(s) would benefit from inputmode attribute

Mobile browsers pick the on-screen keyboard layout from `inputmode=` when present (numeric pad, tel dialpad, email keyboard). Without it, users see the default text keyboard and must mode-switch -- 2-3 extra taps per phone-number or numeric-ID field. Type-based defaults exist (`type=tel` shows the tel keyboard on most browsers) but `inputmode` is the explicit, cross-browser way to control this. Affected types: email.

Got: <input type="email" name="email" id="waitlist-email">

Mobile-Readable Font Sizes

95% of visible text renders at >= 12 CSS px (8 below threshold)

REVIEW

95% of visible text renders at >= 12 CSS px (8 below threshold)

8 text node(s) render below 12 CSS pixels on mobile

Mobile browsers default the root font-size to 16 px; text below ~ 12 px (75% of root) is hard to read without zooming. WCAG 1.4.4 (Resize Text) requires the page to support 200% zoom without loss of functionality -- which most layouts handle, but small base text still costs readability and conversion. Audit which selectors set sizes below 12 px (often footers, fine print, table cells) and bump them to 14-16 px or use rem units that scale with user preferences. Examples: <span> 11.5px ("dark"); <span> 11.5px ("ok"); <span> 11.5px ("ok"); <span> 11.5px ("fail"); <span> 11.5px ("fail").

404 Error Page

HTTP 404, custom page

REVIEW

HTTP 404, custom page

Correct 404 status code returned

Got: HTTP 404

Custom styled 404 page

Navigation links present on 404 page

Homepage link present on 404 page

404 Page Quality ✓ Custom 404 Page

Status Code HTTP 404 ✓Page Title Page not found — StrictMX ✓Custom Styling ✓Navigation ✓Homepage Link ✓Search Form ✗

Favicon & Branding

6 icon(s) detected

REVIEW

6 icon(s) detected

No favicon.ico at site root

Some older browsers, bookmark tools, and RSS readers look for /favicon.ico. Add one as a fallback.

HTML icon links detected

Apple touch icon present

SVG favicon detected — scales perfectly to any size

Multiple icon sizes detected

✗ favicon.ico Missing

✓ PNG Icons Present

✓ Apple Touch Present

✓ SVG Favicon Present

✓ Manifest Icons Present

✓ Multiple Sizes Present

Landmark Structure

4 landmarks

PASS

4 landmarks

<main> landmark present

1 <nav> landmark(s) found

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

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

A+

Heading Hierarchy

16 headings

PASS

16 headings

Single H1 present

H1 Your mail lands in spam. I'll tell you exactly why.
H2 Why not just use a free checker
H2 What gets checked
H3 Outbound
H3 Inbound
H2 What you receive
H2 Who's doing the audit
H2 How it works
H2 Questions
H3 Will you fix it for me?
H3 I use Google Workspace / SES / Postmark — is this for me?
H3 I self-host — is this for me?
H3 Do you know my specific mail server?
H3 What do you need from me?
H3 Why not a free checker?
H3 48 hours from when?

A+

Heading Text Quality

All 16 heading(s) have substantive, well-formed text

PASS

All 16 heading(s) have substantive, well-formed text

Heading text quality is clean -- no placeholder, length, or styling issues

A+

Alt Text Quality

No images

PASS

No images

No images on this page

No images on this page.

A+

Form Accessibility

All 1 controls labeled

PASS

All 1 controls labeled

1 control(s) properly labeled

1 controls

1 labeled

0 placeholder only

0 unlabeled

Control	Type	Label	Method
#waitlist-email	email	Email address	for/id

A+

Link & Button Quality

23 links, 2 buttons — all OK

PASS

23 links, 2 buttons — all OK

23 link(s) with descriptive text

23 links

0 empty

0 generic text

0 new tab

0 empty buttons

All links and buttons have descriptive accessible text.

25 links and buttons have descriptive text

A+

Form Input Types

1 form control(s) checked, no type mismatches

PASS

1 form control(s) checked, no type mismatches

No input-type mismatches detected

A+

Form Input Quality

1 form control(s) checked, no input-semantic issues

PASS

1 form control(s) checked, no input-semantic issues

All form input semantics look correct

A+

Document Language

Lang attribute set to "en"

PASS

Lang attribute set to "en"

<html lang="en"> is set and valid

Got: en

A+

Tabindex Anti-Patterns

0 positive, 1 -1-on-focusable

PASS

0 positive, 1 -1-on-focusable

tabindex="-1" on naturally-focusable <input>

tabindex="-1" removes an element from the keyboard tab order. Naturally-focusable elements (links, buttons, form controls) become unreachable for keyboard users. (Common false-positive: hidden honeypot fields. Verify the element is genuinely interactive before removing the tabindex.)

A+

Iframe Accessibility

No iframes on this page

PASS

No iframes on this page

A+

Tap Target Adequacy

All tap targets meet WCAG 2.5.5/2.5.8 sizing

PASS

All tap targets meet WCAG 2.5.5/2.5.8 sizing

All tap targets meet WCAG 2.5.5 (44x44px) sizing

A+

Web Manifest

PWA-ready

PASS

PWA-ready

Meets PWA install criteria

Name present: StrictMX — mail health audit

192x192 icon present

512x512 icon present

Display mode: standalone

PWA Install Criteria ✓ Installable

Name StrictMX — mail health audit ✓192×192 icon ✓512×512 icon ✓Start URL / ✓Display Mode standalone ✓

Name StrictMX — mail health audit Display Mode standalone Theme Color #f6f6f4 Background Color #f6f6f4 Icons 3 icon(s)

A+

PWA Depth

No PWA depth issues detected

PASS

No PWA depth issues detected

A+

Mobile UX Depth

1 mobile-depth signal(s) detected

PASS

1 mobile-depth signal(s) detected

Browser-chrome `theme-color` meta tag present

The page sets `<meta name="theme-color" content="...">`, which Android Chrome uses to tint the status bar and iOS Safari uses for the toolbar background. Brand polish that costs nothing and Just Works.

A+

Color Contrast (Screenshot)

20 text elements analyzed, 0 fail WCAG AA

PASS

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

20 pass

Show all checked elements (20)

Element	Ratio	Required	FG	BG	Result
h1 Your mail lands in s…	19.41:1	3.0:1	#000000	#F6F6F4	Pass
h2 Why not just use a f…	19.41:1	3.0:1	#000000	#F6F6F4	Pass
h2 What gets checked	19.41:1	3.0:1	#000000	#F6F6F4	Pass
h2 What you receive	19.41:1	3.0:1	#000000	#F6F6F4	Pass
h2 Who's doing the audi…	19.41:1	3.0:1	#000000	#F6F6F4	Pass
h2 How it works	19.41:1	3.0:1	#000000	#F6F6F4	Pass
h2 Questions	19.41:1	3.0:1	#000000	#F6F6F4	Pass
h3 Outbound	19.41:1	3.0:1	#000000	#F6F6F4	Pass
h3 Inbound	19.41:1	3.0:1	#000000	#F6F6F4	Pass
h3 Will you fix it for …	19.41:1	3.0:1	#000000	#F6F6F4	Pass
h3 I use Google Workspa…	19.41:1	3.0:1	#000000	#F6F6F4	Pass
h3 I self-host — is t…	19.41:1	3.0:1	#000000	#F6F6F4	Pass
h3 Do you know my speci…	19.41:1	3.0:1	#000000	#F6F6F4	Pass
h3 What do you need fro…	19.41:1	3.0:1	#000000	#F6F6F4	Pass
h3 Why not a free check…	19.41:1	3.0:1	#000000	#F6F6F4	Pass
h3 48 hours from when?	19.41:1	3.0:1	#000000	#F6F6F4	Pass
title Email deliverability…	18.85:1	4.5:1	#000000	#F2F3F0	Pass
span strictmx	18.90:1	4.5:1	#000000	#F3F3F1	Pass
span mail health audit ·…	19.07:1	4.5:1	#000000	#F4F4F2	Pass
span dark	19.24:1	4.5:1	#000000	#F5F5F3	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.

Lighthouse Accessibility Audits

Score 91/100 — 2 failing, 20 passed

PASS

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
headers — rejected message, mx.google.com `section.smx-section > div.smx-panel > div.smx-panel-bar > span`
example.com zone, before and after the audit `main.smx-main > section.smx-section > div.smx-panel > div.smx-panel-bar`

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
transactional mail like password resets and receipts `section.smx-section > div.smx-panel > p.smx-kinds > a`
opt-in newsletters under the bulk sender rules `section.smx-section > div.smx-panel > p.smx-kinds > a`
cold outreach `section.smx-section > div.smx-panel > p.smx-kinds > a`
internal business correspondence `section.smx-section > div.smx-panel > p.smx-kinds > a`

These are opportunities to improve the legibility of your content.

○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

●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

●`[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 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

●Document has a main landmark.

●Identical links have the same purpose.

○`[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.

○Image elements have `[alt]` attributes

○Input buttons have discernible text.

○`<input type="image">` elements have `[alt]` text

○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

○`<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.

○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.