WebsiteLinter vs PageGuard: Which Free Website Health Checker Wins in 2026?
When PageGuard launched in April 2026, it quickly grabbed attention in the low-competition "free website health checker" keyword cluster. Within two weeks, it was ranking for terms that site owners actually search for when they want a fast, no-commitment audit — phrases like "check my website health" and "free site health check."
That speed of growth is a signal. It means demand is real, but it also means the space is still open enough for a better tool to claim the top spot.
WebsiteLinter has been running free health checks since before PageGuard existed. We built it for small-to-medium businesses that need answers, not account-creation workflows. This comparison breaks down exactly where each tool wins, where it falls short, and which free website health checker deserves your time in 2026.
What both tools do well
Before we get to the differences, it is worth acknowledging the overlap. Both WebsiteLinter and PageGuard offer:
- A free tier with no credit card required
- SEO audits covering meta tags, headings, and indexability
- Performance scoring rooted in Lighthouse metrics
- Email delivery of reports
- A simple URL input that returns results quickly
If you just want a quick pulse check on whether your site is fundamentally broken, either tool will surface major red flags. The gap opens when you look at depth, accuracy, and what happens after the scan.
The four-pillar test: SEO, performance, security, accessibility
A true website health check should cover four pillars. Most tools claim they do. Few actually deliver on all four with equal rigor.
SEO: Nearly a tie, with one edge
Both WebsiteLinter and PageGuard check title tags, meta descriptions, H1 structure, canonical tags, robots directives, and basic structured data presence. For a typical small business site, the SEO audits are comparable.
Where WebsiteLinter pulls ahead is internal linking analysis and sitemap validation. We flag orphaned pages and broken internal links that PageGuard often misses because it focuses heavily on the single page you submit rather than the broader site topology. If your homepage is healthy but your service pages are invisible to crawlers, WebsiteLinter will tell you. PageGuard may not.
Winner: WebsiteLinter by a narrow margin.
Performance: Real Core Web Vitals vs synthetic estimates
PageGuard returns a Lighthouse-style performance score. So does WebsiteLinter. Both measure Largest Contentful Paint (LCP), Interaction to Next Paint (INP), Cumulative Layout Shift (CLS), and Time to First Byte (TTFB).
The difference is in how we contextualize the numbers. WebsiteLinter compares your metrics against Google's actual Core Web Vitals thresholds — the same ones that determine whether your site earns the "Good" label in Search Console. PageGuard sometimes surfaces synthetic estimates that differ from real-user data, which can give you a false sense of security if your lab score is green but your field score is red.
Winner: Tie on speed; WebsiteLinter wins on accuracy and context.
Security: Where the gap is widest
This is the most lopsided category in the comparison — and it matters more than most site owners realize.
PageGuard checks whether your site has a valid SSL certificate. That is table stakes in 2026. WebsiteLinter goes much deeper:
- HSTS (HTTP Strict Transport Security)
- Content-Security-Policy (CSP)
- X-Frame-Options
- X-Content-Type-Options
- Referrer-Policy
- Mixed content detection
- Outdated server signatures
These headers are not obscure developer trivia. Google has confirmed that security is a ranking signal. Compliance frameworks like SOC 2 and ISO 27001 audit them. Browsers are increasingly blocking features for sites that lack CSP and HSTS. If your health checker only looks at SSL, it is missing the majority of your actual security posture.
PageGuard does not surface these issues in its free tier. In some cases, it does not surface them at all.
Winner: WebsiteLinter by a wide margin.
Accessibility: The lawsuit-prevention pillar
Accessibility is where free tools usually cut corners. It is expensive to run a true WCAG 2.1 AA audit, and the findings can be overwhelming for users who just wanted a quick speed score.
PageGuard offers limited accessibility checks — mostly color contrast and missing alt text. Those are important, but they are not enough.
WebsiteLinter runs a full WCAG 2.1 AA scan that includes:
- Color contrast ratios
- Missing or redundant alt text
- ARIA misuse and missing roles
- Keyboard navigation traps
- Form label association
- Heading hierarchy violations
- Touch target sizing
Why does this matter? Because accessibility lawsuits targeting small businesses have risen steadily since 2023. A health checker that flags these issues before a demand letter arrives is not a nice-to-have. It is risk management.
Winner: WebsiteLinter.
The experience gap: signup walls and upsell pressure
PageGuard markets itself as a free website health checker, and technically it is. But the experience differs in ways that matter for trust.
PageGuard gates some report details behind an email capture wall. You can run the scan without an account, but to see the full breakdown of issues, you need to hand over an email address. That is not unusual in SaaS, but it is not truly "no signup."
WebsiteLinter shows you your full scores before asking for anything. We ask for an email so we can deliver the report — not so we can unlock the results. The difference is subtle but real: you know what you are getting before you commit.
On upsell pressure, PageGuard pushes its Pro tier aggressively in the report flow. WebsiteLinter keeps the upgrade path visible but unobtrusive. We would rather you fix your site than feel pressured into a subscription.
Pricing comparison
| Plan | WebsiteLinter | PageGuard |
|---|---|---|
| Free tier | 3 scans/day, full scores | 1 scan/day, partial scores |
| Pro | $9/month | ~$12–19/month |
| Agency / Team | $29/month | ~$49/month |
| White-label reports | Included at Agency | Usually enterprise add-on |
If you are a solo site owner, both free tiers are usable. If you are an agency managing multiple client sites, WebsiteLinter's Agency plan is significantly less expensive for comparable features.
Who should use PageGuard?
PageGuard is not a bad tool. It is newer, it has a clean interface, and it moves fast on feature releases. We would recommend it for:
- Solo developers who want a quick SEO and performance pulse check
- Teams already embedded in the PageGuard ecosystem
- Users who prefer a more guided, wizard-style report flow
Who should use WebsiteLinter?
WebsiteLinter is built for small-to-medium businesses, agencies, and anyone who treats a health check as a serious diagnostic rather than a novelty. Choose WebsiteLinter if:
- You need security header analysis for compliance or peace of mind
- You want a true WCAG 2.1 accessibility audit to reduce legal risk
- You prefer no signup pressure and transparent scoring
- You manage multiple sites and want affordable agency pricing
- You care about real Core Web Vitals context rather than just a single number
How to run your own comparison
The fastest way to decide is to test both tools against the same URL. We recommend picking a page you know has issues — an older blog post, a plugin-heavy WordPress page, or a client site with mixed content warnings.
Run both scans and compare:
- Does each tool find the security header gaps? (Check HSTS and CSP specifically.)
- Does the accessibility section flag keyboard traps or ARIA misuse?
- Are the performance scores consistent with Google PageSpeed Insights?
- How many clicks does it take to see the full report?
If one tool surfaces issues the other misses, that is your answer about depth.
Final verdict
PageGuard is a competent newcomer with a polished UI and fast SEO feedback. It is a viable option if you only care about SEO and performance at a surface level.
WebsiteLinter wins on depth — especially in security and accessibility — and on transparency. We do not think a free website health checker should hide half the report behind a signup wall or skip entire pillars that affect your rankings, compliance, and legal exposure.
If you are serious about keeping your site healthy, the choice is clear.
Ready to see the difference? Run a free website health check now — no signup required, full scores in 30 seconds.