Most marketing teams treat web accessibility like a compliance checkbox: Fix the alt text, bump up the color contrast, call it done.
Meanwhile, search engines are making the same judgments your screen reader users are. Can they understand your content? Can they navigate around your site? Can they complete a task on it?
When you bake digital accessibility into content, design, and engineering from the start, you build the kind of accessible website search engines can't help but reward.
A holistic SEO strategy doesn't separate accessibility from search engine optimization — it recognizes they're two sides of the same coin. It turns out crawlers and humans want the same things; who knew?
Here's what you'll learn how to do in this article:
- Build enterprise-wide governance that keeps your content accessible and search-friendly without slowing teams down.
- Pinpoint the accessibility issues blocking Google from indexing your pages and users from converting.
- Prove website accessibility's impact on traffic quality and pipeline value with dashboards your CFO will understand.
- Set up monitoring that catches problems before they tank your search engine rankings or trigger an audit panic.
First, let's define the marketing foundations of accessibility.
On this page
When WCAG compliance accidentally fixes your SEO
Accessible design operationalizes clarity, consistency, and inclusivity, raising content comprehension, mobile usability, and search visibility.
Every web accessibility fix is a search engine optimization fix in disguise.
- Screen readers navigate by heading hierarchy? So do Google's crawlers.
- Alt text for visually impaired users? That's your image search ranking.
- Color contrast that makes text readable? It keeps visitors engaged long enough to convert.
Meeting web content accessibility guidelines (WCAG) isn't just about accessibility compliance. It's about building the kind of site structure that search engines reward.
Structure that works for humans and bots
Heading hierarchies do double duty. H1 for titles, H2 for sections, and H3 for subsections lets screen readers jump between content blocks efficiently. Crawlers use the same structure to figure out what matters on your page and how ideas connect.
Skip from H1 to H3, and both audiences lose the thread. Use bold text instead of semantic headings, and neither human nor bot registers them as navigational landmarks. This is semantic SEO in action: proper markup that conveys meaning to both assistive technology and search engine algorithms.
Alt text works similarly. Something like, "Dashboard showing 40% increase in organic traffic after accessibility fixes" gives context to screen reader users and indexable content to Google.
Lists make content scannable for sighted users and navigable for assistive tech, while giving search engines clear structure to parse.
Design choices Google measures
WCAG requires a minimum contrast of 4.5:1 for body text. Those same ratios make content readable on mobile devices in bright sunlight and for anyone over age 40 with mild vision changes (so, most of your audience).
Better readability drives longer time on page and lower bounce rates, both of which are user engagement signals Google tracks. Typography matters, too. Proper line height, letter spacing, and resizable text keep users reading instead of squinting and bouncing.
These aren't just accessibility standards. They're engagement optimizations that directly impact SEO performance.
Mobile accessibility overlaps with Core Web Vitals
Google's mobile-first indexing means your mobile experience determines rankings. Touch targets need a minimum size of 44 by 44 pixels (per WCAG) to prevent mis-clicks and frustration. Tiny buttons also signal layout problems that hurt Cumulative Layout Shift (CLS) scores and site speed.
Proper focus management prevents forms from breaking on mobile, which improves completion rates. Better conversions send quality signals that Google notices.
Keyboard navigation predicts conversions
Links, buttons, forms, and menus all need to work with keyboard-only navigation. If users can't tab through your form or activate your menu with the Enter key, they can't complete tasks.
Sites that prioritize keyboard accessibility see higher form completion and lower abandonment rates — improvements that show up directly in conversion metrics.
Inclusive design reaches everyone
According to the CDC, more than 1 in 4 U.S. adults have a disability, but accessible website design helps with more than including this population in your audience:
- Captions serve people in noisy spaces.
- Transcripts help commuters consume audio content on trains.
- Clear navigation helps mobile users multi-tasking in a hurry.
Websites with strong accessibility scores show lower bounce rates across all segments. Reduce friction for your most challenged users, and you improve things for everyone, including your search engine results.
Stop treating accessibility and SEO as separate initiatives
Unified accessibility and SEO programs compound results by fixing discovery, comprehension, and conversion blockers in one pass instead of two.
Here's how most companies waste time: The accessibility team grinds through WCAG violations in Jira. Meanwhile, three floors up (or three Slack channels over), the SEO team optimizes the exact same pages for rankings.
Both teams fix heading structures. Both improve page speed. Both clarify navigation. They're doing the same work twice and wondering why progress feels glacial.
Traditional SEO treats accessibility as a separate concern. Holistic SEO recognizes they're inseparable. And that's where competitive advantage lives.
Merge the roadmaps
When your SEO efforts include digital accessibility from the start, you catch problems before they go live instead of fixing them in post-launch panic mode.
Sprint planning becomes simpler: the content team, developers, and SEO professionals align on which pages need work, and heading structure fixes go on one ticket instead of two.
Image optimization covers both alt text and page speed.
Navigation improvements help keyboard users while reducing crawl depth.
One shared backlog. Half the meetings. Twice the impact.
Prioritize what blocks both humans and bots
Not everything deserves immediate attention. Focus on issues that hurt accessibility and indexing simultaneously, like missing H1 tags, broken internal links, images without alt text, forms that trap keyboard users, and CTAs buried in text walls.
Siteimprove flags these as critical when they block crawlers or prevent task completion. Cross-reference with Google Search Console (GSC) data showing crawlability problems or tanking impressions, and suddenly your backlog has clear business justification beyond "Compliance says so."
Governance prevents backsliding
Fixing problems once is great. Keeping them fixed is better.
Teams that see sustained gains build governance that prevents regressions:
- SLAs for addressing critical issues within one sprint
- Component libraries that bake accessibility into templates by default
- Training that explains why semantic HTML matters for both screen readers and search rankings
Monthly Siteimprove scans paired with GSC reviews catch problems before they pile up, giving you data for targeted retraining instead of company-wide finger-wagging.
Prove ROI with unified dashboards
Pull Siteimprove accessibility scores, Core Web Vitals, GSC rankings, Google Analytics data, and conversion metrics into one executive dashboard.
When leadership sees accessibility fixes correlating with traffic jumps and conversion gains, budget conversations get a lot easier. Track organic growth, position improvements, form completions, and pipeline value, all mapped to specific remediation work.
Teams running integrated programs consistently outrank competitors treating accessibility like a quarterly compliance ritual. The gap shows up in rankings, traffic quality, and conversion rates.
Accessible UX drives the engagement metrics Google rewards
Inclusive UX increases findability and task completion, lifting the user engagement signals that directly influence rankings and revenue.
Rankings aren't just about keyword research anymore. Google tracks what happens after the click, including session duration, pages per visit, and return rate. The algorithm rewards sites where people actually get stuff done instead of rage-clicking through broken navigation or giving up halfway through checkout.
Understanding search intent becomes easier when your site works for everyone. Users find what they need, complete tasks, and return. These are the signals that boost your visibility in search engine results.
Plain language beats corporate speak every time
Have you read a product page that sounds like three lawyers edited it? Dense paragraphs full of "synergistic solutions" and "enterprise-grade optimization frameworks" slow everyone down.
Short sentences using standard words help people understand content quickly, whether they're skimming between meetings or using assistive tech to navigate.
This isn't just good web design. It's content quality that search engines can evaluate and reward. Headings that describe the section below them work like road signs. White space gives readers breathing room.
When your page structure makes sense, people don't bounce after five seconds of confused scrolling.
Bad forms bleed conversions
Most form abandonment happens because forms are genuinely terrible. Things like no label explaining what goes in the "Account ID" field. Or an error message saying, "Invalid format" without mentioning you need a hyphen between the numbers. Fix the labels. Write error messages in sentences that explain the actual problem. Make the tab order follow the visual order.
Skip links and consistent navigation reduce friction
Keyboard users shouldn't have to tab through 40 navigation links just to reach your content. Skip links solve this, because one click jumps them to the main article. The same logic applies to your mega-menu that needs to surface every subcategory ever created.
Navigation patterns that stay consistent across pages help users predict where things live without starting from scratch each time.
People who aren't fighting your site architecture explore deeper, stay longer, and convert more often.
Optimized media improves performance and accessibility
Images that haven't been compressed since 2019 will tank your page speed. On the other hand:
- Lazy loading prevents off-screen images from blocking initial render.
- Alt text describes images for screen readers while giving Google indexable content.
- Video transcripts help people in loud environments while creating text that ranks for related searches.
Faster pages rank better through Core Web Vitals. Accessible media ranks better through multiple content signals. It all compounds.
Test accessibility improvements
Treat accessibility fixes as conversion experiments:
- Run A/B tests with clearer form labels.
- Test simplified navigation against your current maze.
- See if plain-language CTAs outperform whatever corporate-approved button copy you're stuck with now.
Track which changes move conversion rates, then map those improvements to lead quality and sales velocity. That's how you prove accessibility drives revenue, not just compliance.
What accessibility-driven growth looks like in practice
Enterprises that prioritize accessibility within SEO achieve durable gains across rankings, traffic quality, and conversion throughput.
Case studies usually promise the moon and deliver a participation trophy. These numbers are different because the companies stopped treating accessibility like homework and started using it to win in search.
QV Skincare: 592% is not a typo
Competitors with slicker digital experiences were eating QV Skincare's lunch. Their conversion funnel had more holes than a screen door. Pages loaded slowly. Navigation confused people.
Six months after using Siteimprove to fix accessibility and performance issues, their keywords ranking in positions 1-3 jumped 592%. Not 59%. Not 92%. Five hundred ninety-two percent.
Organic traffic climbed within weeks. Core Web Vitals improved 23%. Time to fix cross-site errors dropped from eight months to eight days. The percentage of people searching "where to buy" who then considered QV increased by 38%.
Making the site work better for humans made it rank better with Google. A shocking development.
Springfield Clinic cut 60% of their pages and traffic went up anyway
The Springfield Clinic had 2,500 pages. Most were bad: Their framework was outdated, their accessibility was rough, And their SEO scores were nothing to brag about.
They torched it and started over, building accessibility and SEO as partners from day one with a holistic SEO strategy.
The new site hit the 91st percentile for SEO while cutting page count to 990. Daily search volume jumped 30% with 60% fewer pages to maintain. Quality beat quantity so decisively they won a 2022 eHealthcare Leadership Award for it.
How Siteimprove standardizes fixes across teams and channels
Scattered tools create scattered priorities. Siteimprove consolidates accessibility, QA, performance, and policy checks into one platform, giving teams a shared view of what's broken and why it matters.
Here's how most accessibility and SEO programs fall apart:
- One team uses Axe for accessibility audits.
- Another runs Screaming Frog for SEO crawls.
- Someone else monitors Core Web Vitals in PageSpeed Insights.
- Your QA team has their own checklist in Jira.
Nobody's looking at the same data, so every planning meeting becomes a debate about whose backlog actually matters.
Siteimprove fixes this by putting everything in one place. Accessibility violations, broken links, performance issues, and custom policy rules all surface in the same dashboard. One SEO tool to rule them all means fewer "well, my tool says..." arguments.
What each module catches
Here's what you get when everything lives in one platform instead of scattered across five tools your team forgets to check:
| Module | What It Does | Why SEO Cares |
|---|---|---|
| Accessibility | WCAG compliance, semantic structure, keyboard navigation | Crawlers parse the same markup screen readers use |
| QA | Broken links, missing alts, duplicate titles, misspellings | These block indexing and confuse topic signals |
| Performance | Core Web Vitals, image compression, render blocking | Direct ranking factor plus reduces bounce |
| Policy | Custom rules for brand, legal, compliance | Prevents regressions at scale |
Integration that doesn't require begging developers
Siteimprove pushes findings straight into Jira, Monday, or whatever project management tool your team uses, because nobody opens another dashboard voluntarily.
Plug automated checks into CI/CD pipelines and issues get flagged before code ships instead of after someone tweets a screenshot of your broken site.
Prioritization becomes easier when you cross-reference Siteimprove issue weights with GSC data. Pages with declining impressions and accessibility problems? Those go to the top. Random 404s on a page getting three visits per year? Those can wait.
Ownership and dashboards that execs understand
RACI frameworks map who owns what. Set SLAs for critical issues, like broken links fixed within one sprint, missing H1 tags within two. Push findings to Jira so fixes flow through normal throughput instead of creating shadow backlogs that nobody tracks.
Build one executive dashboard combining GSC rankings, Core Web Vitals, analytics, and Siteimprove scores. When your CMO sees accessibility improvements happening right before traffic spikes, suddenly budget approvals get a lot faster.
Your 90-day rollout (without the death march)
Don't try to fix everything at once. That's how programs die in month two when everyone burns out. Start small, prove it works, then scale:
| Timeframe | Focus | What This Looks Like |
|---|---|---|
| Weeks 1-2 | Audit and baseline | Full Siteimprove scan, flag critical blockers, screenshot the "before" numbers |
| Month 1 | Quick wins and training | Knock out high-impact issues, train teams, write down who owns what |
| Months 2-3 | Scale and sustain | Wire into CI/CD, set SLAs, build dashboards, bore execs with good news |
Pick one high-traffic section of your site. Fix it properly. Show the before/after numbers. Then expand once you've proven the approach works instead of trying to boil the ocean on day one.
Start small, scale fast, win consistently
Accessible websites rank higher because they work better:
- Clean code helps crawlers parse content.
- Semantic markup clarifies meaning.
- Plain language improves comprehension.
- Fast pages keep people from bouncing.
These aren't separate initiatives. They're the same work.
A holistic accessibility program integrated with your content strategy delivers sustained wins through:
- Governance that catches regressions before they ship
- Unified tooling that shows everyone the same priorities
- Metrics that prove accessibility drives traffic and conversions.
This is how you build SEO best practices into your DNA, not just your backlog.
Start with an audit. Then fix what blocks both crawlers and users first. Build the fixes into your workflow so they stick. And train teams, so content quality becomes automatic instead of aspirational.
Your competitors treating accessibility like a compliance drill will keep fixing the same problems quarterly while you're pulling ahead in rankings, conversions, and operational efficiency. That gap will widen over time.
Whether you're focusing on local SEO, search engine marketing, content marketing, content creation, or social media, the same principle applies: Accessible sites win.
Ready to see how Siteimprove unifies accessibility and SEO? Request a demo.
Diane Kulseth
With over a decade of digital marketing experience, Diane Kulseth is the Manager for Digital Marketing Consulting at Siteimprove. She leads the Digital Marketing Consulting team in providing services to Siteimprove's customers in SEO, Analytics, Ads, and Web Performance, diagnosing customer needs and delivering custom training solutions to retain customers and support their digital marketing growth.