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Accessibility

· 13 checks — Landmarks, headings, alt text, forms, and link quality rolled into one auditable list.
SCORE
58
GRADE
D
FIX
5
REVIEW
3
PASS
5
INFO
0
Checks
13
5 PASS 3 REVIEW 5 FIX
F
Heading Hierarchy
Action
148 headings, 2 skip(s)
FIX
148 headings, 2 skip(s)
Critical::
No H1 heading found
Every page should have one H1 that describes the page content.
Warning::
Heading level skipped: H2 → H5 (missing H3)
Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.
Warning::
Heading level skipped: H3 → H5 (missing H4)
Skipping heading levels breaks the document outline. Screen readers may interpret missing levels as structural errors.
Warning::
9 empty heading(s)
Empty headings appear in the document outline but provide no information.
  • H2 Support Options
  • H3 Featured Products:
  • H3 SparkFun Inventor's Kit for MicroPython
  • H3 Teensy 4.0
  • H3 HackRF Pro
  • H3 Experiential Robotics Platform (XRP) Kit
  • H3 SparkFun Inventor's Kit - v4.1.2
  • H3 NVIDIA Jetson Orin™ Nano Super Developer Kit
  • H3 SparkPNT FPM
  • H3 SparkFun GPS-RTK-SMA Breakout - ZED-F9P (Qwiic)
  • H3 Featured Resources and Documentation:
  • H3 Featured GPS / GNSS:
  • H3 SparkFun RTK Facet
  • H3 SparkPNT TX2
  • H3 SparkFun Allband GNSS RTK Breakout - ZED-X20P (Qwiic)
  • H3 SparkFun GNSS Flex pHAT - mosaic-X5
  • H3 Jump to GPS / GNSS Subcategory:
  • H3 GPS/GNSS Resources and Documentation:
  • H3 Featured Sensors:
  • H3 PureThermal Mini Pro JST-SR (with FLIR Lepton 3.5)
  • H3 LIDAR-Lite v3HP
  • H3 SparkFun Simultaneous RFID Reader - M7E Hecto
  • H3 SparkFun Qwiic Soil Moisture Sensor (Capacitive)
  • H3 Jump to Sensor Subcategory:
  • H3 Sensor Resources and Documentation:
  • H3 Featured Development Boards:
  • H3 SparkFun RedBoard Plus
  • H3 Teensy 4.0
  • H3 SparkFun Thing Plus - ESP32 WROOM (USB-C)
  • H3 Raspberry Pi 5 - 8GB
  • H3 Jump to Development Board Subcategory:
  • H3 Dev Board Resources and Documentation:
  • H3 Featured IoT & Wireless:
  • H3 SparkFun Thing Plus - RP2350
  • H3 SparkFun DataLogger IoT
  • H3 SparkFun BlueSMiRF v2
  • H3 RockBLOCK 9603N - Iridium SatComm Module
  • H3 Jump to IoT & Wireless Subcategory:
  • H3 IoT & Wireless Resources and Documentation:
  • H3 Featured Components:
  • H3 SparkFun OpenLog
  • H3 Resistor Kit - 1/4W (500 total)
  • H3 SparkFun Capacitor Kit
  • H3 Buck-Boost Converter - 8-40V to 12V/3A
  • H3 Jump to Components Subcategory:
  • H3 Component Resources and Documentation:
  • H3 Featured Kits:
  • H3 SparkFun Inventor's Kit for MicroPython
  • H3 SparkFun Inventor's Kit - v4.1.2
  • H3 Experiential Robotics Platform (XRP) Kit
  • H3 Makey Makey Classic by JoyLabz
  • H3 Jump to Kit Subcategory:
  • H3 Resources and Documentation for Kits:
  • H2 Support Options
  • H3 BROWSE OUR FULL CATALOG
  • H3 FREE DOMESTIC SHIPPING
  • H3 BORN & WIRED IN
  • H3 BOULDER, CO
  • H3 BROWSE OUR FULL CATALOG
  • H3 FREE DOMESTIC SHIPPING
  • H3 BORN & WIRED IN
  • H3 BOULDER, CO
  • H2 BlueSMiRF v2 - JST
  • H3 A wireless serial bridge made for Bluetooth-enabled devices and JST-GH based hardware.
  • H2 9DoF IMU Breakout - IM19
  • H3 A motion tracking breakout that brings together accelerometer, gyro, and magnetometer data.
  • H2 Thing Plus - ESP32-C5
  • H3 The latest ESP32 board for wireless applications that need more range and flexibility.
  • H3 (empty)
  • H3 (empty)
  • H2 Our Latest & Greatest Products
  • H5 New Releases skipped
  • H5 See all
  • H3 SparkFun 9DoF IMU Breakout - IM19
  • H3 SEGGER J-Link EDU Mini (with USB-C Cable)
  • H3 SparkFun BlueSMiRF v2 - JST
  • H3 Akasa Pi-5 Pro - Aluminum Raspberry Pi 5 Enclosure
  • H3 SparkFun Thing Plus - ESP32-C5
  • H3 SparkFun Qwiic Relay - 1x1A DPDT
  • H3 SparkPNT FPM
  • H3 SparkPNT FPX
  • H3 SparkPNT FPL
  • H3 SparkPNT FPM-T
  • H3 SparkPNT FPX-T
  • H3 SparkPNT FPL-T
  • H3 SparkPNT FP (No GNSS Receiver)
  • H3 SparkFun OpenScale - IoT
  • H3 SparkFun Qwiic Soil Moisture Sensor (Capacitive)
  • H5 Best Sellers skipped
  • H5 See all
  • H3 LIDAR-Lite v3
  • H3 Teensy 4.1
  • H3 Teensy 4.0
  • H3 NVIDIA Jetson Orin™ Nano Super Developer Kit
  • H3 Raspberry Pi 5 - 16GB
  • H3 Teensy 4.1 without Ethernet
  • H3 SparkFun GPS Dead Reckoning Breakout - NEO-M8U (Qwiic)
  • H3 NVIDIA Jetson AGX Orin 64GB Developer Kit
  • H3 SparkFun RTK Facet
  • H3 RockBLOCK 9603N - Iridium SatComm Module
  • H3 SMD LED - RGB WS2812B (Whole Reel)
  • H3 Raspberry Pi 4 Model B (8 GB)
  • H3 PureThermal Mini Pro JST-SR (with FLIR Lepton 3.5)
  • H3 Raspberry Pi Zero 2 W
  • H3 SparkPNT TX2
  • H3 SparkFun Allband GNSS RTK Breakout - ZED-X20P (Qwiic)
  • H3 GNSS Multi-Band L1/L2/L5 Surveying Antenna - TNC (SPK6618H)
  • H3 LIDAR-Lite v3HP
  • H3 SparkFun Triband GNSS RTK Breakout - mosaic-X5
  • H3 Teensy 4.1 without Ethernet, Lockable
  • H2 Browse Top Electronics Categories
  • H2 Prototyping and R&D Ecosytems
  • H3 (empty)
  • H3 (empty)
  • H3 (empty)
  • H3 (empty)
  • H3 (empty)
  • H3 (empty)
  • H3 (empty)
  • H2 Latest News
  • H3 Mic Price Check
  • H3 Use Galileo's Free High Accuracy Service With The TX2
  • H3 The History of BlueSMiRF
  • H3 Upgrade Your RTK GNSS Board with Tilt Compensation
  • H2 Latest Tutorials and Videos
  • H3 What's the difference between the ZED-F9P and the ZED-X20P?
  • H3 Qwiic & Easy DIY Ambient Light Indicator
  • H3 Build Your Own High-Concentration CO2 Detector
  • H3 Breadboard Power Supply Kit 5V/3.3V Quickstart Guide
  • H3 Circuit 3A: SparkFun Inventor's Kit for MicroPython
  • H3 Naming the Whole XRP Partner Consortium While Assembling an XRP
  • H3 A Simple, High Precision GNSS Rover for ~$300?!
  • H3 Product Showcase: SparkFun Qwiic WAV Trigger Pro
  • H2 Learn About Popular Electronics Topics
  • H2 Build a Custom Kit
  • H2 Shop Featured Brands
  • H2 It’s simple.
  • H3 We believe new tech helps make great ideas happen.
  • H3 ABOUT SPARKFUN
  • H3 PARTNER WITH US
  • H3 SUPPORT
  • H3 SITE INFORMATION
  • H3 SUBSCRIBE
  • H3 VIEW OUR SOCIAL CHANNELS
  • H2 Please select and accept your Cookies Group
  • H3 Essential
  • H3 Marketing
  • H3 Analytics

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

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

Empty headings appear in the document outline but provide no information.

Why this matters

Empty <hN> tags break the document outline — screen-reader users navigating by heading hit dead silence.

Source: WCAG 2.4.6

D
Favicon & Branding
Action
3 icon(s) detected
FIX
3 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.

F
Navigation UX
Action
1 navigation pattern(s)
FIX
1 navigation pattern(s)
Info::
Skip navigation link detected
Info::
3 navigation landmark(s) detected
Info::
Hamburger menu detected (responsive design)
Breadcrumbs
Search
Skip Link Skip link detected
Labeled Navigation 3 <nav> element(s)
Back to Top
Hamburger Menu
Sticky Navigation Cannot reliably detect (CSS-based)
3 of 6 testable patterns navigation patterns detected. Strong navigation UX with multiple discovery paths.
B
Form Accessibility
2 of 15 controls have issues
REVIEW
2 of 15 controls have issues
Critical::
2 control(s) without accessible label
Form controls need a <label>, aria-label, or aria-labelledby for screen readers.
Got: <textarea name="g-recaptcha-response" id="g-recaptcha-response">; <input type="submit">
Info::
13 control(s) properly labeled
15 controls
13 labeled
0 placeholder only
2 unlabeled
ControlTypeLabelMethod
#searchtextSearchfor/id
#customer-emailemailEmail Addressfor/id
#passpasswordPasswordfor/id
#amgroupcat-gdprcheckboxnone
#amgroupcat-nametextCustomer Namefor/id
#amgroupcat-emailemailCustomer Emailfor/id
#amgroupcat-phonetextPhone Numberfor/id
#amgroupcat-commenttextareaCommentfor/id
#firstname-4bfd0f2d-9735-4767-8d84-25d8bc7d445ftextFirst Name:for/id
#email-4bfd0f2d-9735-4767-8d84-25d8bc7d445femailEmail:*for/id
#switchBox-1checkboxEssentialfor/id
#switchBox-4checkboxMarketingfor/id
#switchBox-7checkboxAnalyticsfor/id
inputsubmit(none)none
#g-recaptcha-responsetextarea(none)none

Form controls need a <label>, aria-label, or aria-labelledby for screen readers.

<textarea name="g-recaptcha-response" id="g-recaptcha-response">; <input type="submit">

Why this matters

Form controls without labels — assistive tech announces 'edit text' with no context; users can't complete forms.

Source: WCAG 2.1 SC 3.3.2

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
404 Page Quality ✓ Custom 404 Page
Status Code HTTP 404 ✓Page Title Page not found - SparkFun Electronics ✓Custom Styling ✓Navigation ✓Homepage Link ✗Search Form ✗
A
Landmark Structure
22 landmarks
PASS
22 landmarks
Info::
<main> landmark present
Info::
3 <nav> landmark(s) found
Warning::
1 of 3 <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 "Useful links" MAIN ASIDE "Cookie Bar" 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+
Alt Text Quality
All 175 images OK
PASS
All 175 images OK
Info::
21 decorative image(s) correctly marked
Info::
154 image(s) with good alt text
175 images 154 good alt text 21 decorative
All images have appropriate alt text.
A+
Print Stylesheet
Print styles detected
PASS
Print styles detected
Info::
External print stylesheet detected
Got: https://www.sparkfun.com/static/version1775629953/frontend/SparkFun/default/default/css/print.css
Print Stylesheet ✓ Print Optimized
Print stylesheet https://www.sparkfun.com/static/version1775629953/frontend/SparkFun/default/default/css/print.css ✓Inline @media print Not detected ✗
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)
ElementRatioRequiredFGBGResult
h2 Support Options17.94:13.0:1
#000000
#EDEDED
Pass
h2 Support Options17.94:13.0:1
#000000
#EDEDED
Pass
h2 BlueSMiRF v2 - JST17.94:13.0:1
#000000
#EDEDED
Pass
h2 9DoF IMU Breakout - …17.94:13.0:1
#000000
#EDEDED
Pass
h2 Our Latest & Greates…17.94:13.0:1
#000000
#EDEDED
Pass
h2 Browse Top Electroni…17.94:13.0:1
#000000
#EDEDED
Pass
h2 Prototyping and R&D …17.94:13.0:1
#000000
#EDEDED
Pass
h2 Latest News17.94:13.0:1
#000000
#EDEDED
Pass
h2 Latest Tutorials and…17.94:13.0:1
#000000
#EDEDED
Pass
h2 Learn About Popular …17.94:13.0:1
#000000
#EDEDED
Pass
h2 Build a Custom Kit17.94:13.0:1
#000000
#EDEDED
Pass
h2 Shop Featured Brands17.94:13.0:1
#000000
#EDEDED
Pass
h2 It’s simple.17.94:13.0:1
#000000
#EDEDED
Pass
h2 Please select and ac…17.94:13.0:1
#000000
#EDEDED
Pass
h3 Featured Products:17.94:13.0:1
#000000
#EDEDED
Pass
h3 Featured Resources a…17.94:13.0:1
#000000
#EDEDED
Pass
h3 Featured GPS / GNSS:17.94:13.0:1
#000000
#EDEDED
Pass
h3 Jump to GPS / GNSS S…17.94:13.0:1
#000000
#EDEDED
Pass
h3 GPS/GNSS Resources a…17.94:13.0:1
#000000
#EDEDED
Pass
h3 Featured Sensors:17.94:13.0:1
#000000
#EDEDED
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
Lighthouse Accessibility Audits
Score 93/100 — 3 failing, 32 passed
PASS
93

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.

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
New Releases div.pagebuilder-column-line > div.pagebuilder-column > div > h5
Best Sellers div.pagebuilder-column-line > div.pagebuilder-column > div > h5

These are opportunities to improve keyboard navigation in your application.

Tables and lists

Screen readers have a specific way of announcing lists. Ensuring proper list structure aids screen reader output. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
comparison body#html-body > ul.compare
Featured GPS / GNSS Sensors Development Boards IoT & Wireless Components Kits A… div.section-items > div#store.menu > nav.navigation > ul#ui-id-1
Item div.tabs-content > div#OSKY766 > div > ul#sparkfun-resources-feed-1169589433

Screen readers require list items (`<li>`) to be contained within a parent `<ul>`, `<ol>` or `<menu>` to be announced properly. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Add to Cart SparkFun 9DoF IMU Breakout - IM19 $199.95 div.slick-track > div#slick-slide10 > div > li.product-item
Add to Cart SEGGER J-Link EDU Mini (with USB-C Cable) $89.95 div.slick-track > div#slick-slide11 > div > li.product-item
Add to Cart LIDAR-Lite v3 $149.99 div.slick-track > div#slick-slide20 > div > li.product-item
Add to Cart Teensy 4.1 $31.50 div.slick-track > div#slick-slide21 > div > li.product-item

These are opportunities to improve the experience of reading tabular or list data using 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]`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
●Input buttons have discernible text.
●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.
●`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
●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 are distinguishable without relying on color.
●Links have a discernible name
●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
●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.
○`[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
○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 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.
○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>`.
○Image elements do not have `[alt]` attributes that are redundant text.
○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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