AEO ENGINE FREE TOOL
Free SSL Checker & HTTPS Test
Who this tool is for: Built for SEO leads, site engineers, founders, and agencies who need a fast SSL/HTTPS health check with actionable remediation before launches, migrations, and AEO audits.
What this tool measures
- HTTPS availability, verifies your SSL certificate is valid and working
- HTTP→HTTPS redirect, checks if insecure traffic is redirected to secure
- HSTS header, parses max-age, includeSubDomains, and preload directives
- Mixed content scan, finds HTTP resources loaded on HTTPS pages
- AI crawler compatibility, confirms AI bots can safely connect to your site
- 0-100 SSL/HTTPS score with category breakdown and plain-English fixes
How it works
- Enter your domain or page URL
- The checker tests HTTPS, HTTP→HTTPS redirect, HSTS, and scans for mixed content
- Review the 0-100 score and categorized issues
- Apply the plain-English fixes or run a full AEO report for broader crawlability work
Why it matters for AI search and revenue
AI search engines, ChatGPT, Perplexity, Claude, Google AI Overviews, only cite content they can reach. If your SSL certificate is expired or misconfigured, AI crawlers simply cannot read your pages. Your content becomes invisible to every AI answer engine. Google has used HTTPS as a ranking signal since 2014.
How AEO Engine executes beyond the tool
AEO Engine turns SSL/HTTPS diagnosis into implementation: install or renew certificates, enforce HTTPS redirects, add HSTS headers, eliminate mixed content, and ensure AI crawlers can safely connect. The free tool diagnoses; managed AEO execution ships the fixes.
Use cases and examples
- Verify a new site launch serves valid HTTPS before promoting the URL
- Catch mixed content after a CMS migration that downgrades some assets to HTTP
- Confirm HSTS is present with recommended max-age and preload directives
- Check whether an expired certificate is silently blocking GPTBot and other AI crawlers
Comparison and alternatives
Basic SSL checkers report valid/invalid. This checker adds HSTS analysis, mixed content scanning, AI crawler compatibility, and a direct bridge to AEO execution when SSL issues are one symptom of a larger visibility problem.
FAQ
Why does SSL matter for AI search visibility?
AI crawlers like GPTBot, ClaudeBot, and PerplexityBot require valid SSL/TLS certificates to fetch your content. An expired or misconfigured SSL certificate silently blocks AI bots from reading your pages, making your content invisible in ChatGPT, Perplexity, Claude, and Google AI Overviews. SSL is also a confirmed Google ranking signal since 2014.
How do I fix an expired SSL certificate?
Renew your SSL certificate through your hosting provider, certificate authority, or use a free service like Let's Encrypt via Certbot. Most hosting providers offer one-click SSL renewal. After renewal, clear your CDN cache and verify the new certificate is served correctly.
What is HSTS and do I need it?
HTTP Strict Transport Security (HSTS) is a response header that tells browsers and crawlers to always use HTTPS for your domain, even if a user types http://. It prevents SSL stripping attacks and improves crawl efficiency. Google recommends max-age=31536000 (1 year) with includeSubDomains and preload.
What are mixed content warnings and how do I fix them?
Mixed content occurs when an HTTPS page loads resources (images, scripts, stylesheets, iframes) over HTTP. Browsers block active mixed content and show warnings for passive. Fix by replacing all http:// URLs with https:// or protocol-relative URLs (//). Most CMS platforms have plugins or settings to force HTTPS on all assets.
Does SSL affect my Google ranking?
Yes. Google confirmed HTTPS as a lightweight ranking signal in 2014. While the direct ranking impact is small compared to content quality and backlinks, missing SSL creates a negative trust signal. For AI search visibility, SSL is a hard prerequisite, no SSL means no AI citations.
Next step
Check your SSL certificate, HTTPS configuration, HSTS headers, and mixed content. See whether AI crawlers can safely reach your site. Free, instant, no email gate.