What does StackOptic analyze?

StackOptic runs 18 analysis modules on any public website from a single URL. It detects 7,000+ technologies (CMS, frameworks, analytics, payments, CDN, hosting), evaluates SSL certificates and HTTP security headers with grades from A+ to F, measures Core Web Vitals (LCP, CLS, TBT, FCP), audits SEO meta tags and structured data, checks email security (SPF, DKIM, DMARC), analyzes AI & LLM readiness including bot access and llms.txt validation, extracts color palettes and typography, estimates carbon footprint, and generates permanent shareable reports.

Does it work on sites behind Cloudflare or bot protection?

Yes. StackOptic uses a real browser engine that loads pages exactly like a human visitor — executing JavaScript, rendering CSS, and handling redirects. This allows it to bypass Cloudflare, LiteSpeed, Sucuri, and other bot protection systems where traditional crawlers and HTTP-only tools fail.

What do I get on the free plan?

The free plan includes 5 analyses per day with access to all 18 modules, full scores, technology detection, and security grades. Every report is permanently accessible via a unique shareable URL — no login required to view. No credit card needed. AI-powered insights, re-analysis, PDF/JSON export, and comparison features are available on Pro ($24/mo) and Agency ($99/mo) plans.

What is AI & LLM readiness analysis?

This module evaluates how visible and citable your website is to AI search engines like ChatGPT, Perplexity, Google AI Overviews, and Claude. It audits access permissions for 8 major AI bots, validates llms.txt and llms-full.txt files, scores citation-ready content structure, and analyzes structured data (JSON-LD) for GEO readiness — helping you rank in the next generation of search.

How long does an analysis take?

Most analyses complete in under 10 seconds. StackOptic runs all 18 modules in parallel using a real browser session, so you get technology detection, security audit, performance metrics, SEO analysis, and AI readiness scoring simultaneously.

How accurate are the results?

Detection is based on real browser execution — DOM inspection, JavaScript runtime analysis, HTTP headers, and DNS records. With 7,000+ technology signatures and Lighthouse-calibrated performance scoring, StackOptic achieves high accuracy for mainstream technologies.

What security checks are performed?

The security module evaluates SSL/TLS certificates, 12+ HTTP security headers (HSTS, CSP, X-Frame-Options, Permissions-Policy, Referrer-Policy), HTTPS enforcement, and email authentication (SPF, DKIM, DMARC). Each site receives a letter grade from A+ to F with specific remediation steps.

Do you store the websites I analyze?

StackOptic only stores publicly available information that any visitor to a website would see — HTML content, HTTP headers, DNS records, and screenshots. We do not access private data, log in to websites, or perform any intrusive testing.

Back to Search

mayoclinic.org

https://mayoclinic.org· First analyzed 10 Feb 2026· Updated 10 Feb 2026

Export

mayoclinic.org

Mobile

Sponsored

Hosting Provider

Mayo Foundation Medical Education and Research

IP Address

129.176.1.88

Server Location

🇺🇸 Rochester, United States

ASN

AS7973

Organization

Mayo Foundation Medical Education and Research

Server

Google Frontend

CDN

Akamai

WAF

Akamai

Nameservers

a3-66.akam.net.a10-66.akam.net.a13-66.akam.net.dns2.mayo.edu.+4 more

Performance

Page Speed

2.1 MB

77 requests

0–49

50–89

90–100

Architecture Stack

Hybrid

⚙️ SSR

Frontend

Framework

Next.js

CMS

Adobe Experience Manager

Infrastructure

Hosting

Mayo Foundation Medical Education and Research

CDN

Akamai

Technology Stack

5 Technologies Detected

Meta Frameworks

Next.js Astro

CSS Frameworks

Tailwind CSS

Languages

Customer Support

Zendesk

SEO Analysis

B70/100

mayoclinic.orgmayoclinic.org

The world's best hospital - Mayo Clinic

No description available for this page.

Title Length39 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description - important for click-through rates
• Many images missing alt text (10/19)

3 issues found

Upgrade to view details

Sponsored

Security Score

36%Critical

Interactive

HTTPS

WAF

360d

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin

cache-control

🟡 7 Hours(public, max-age=28779)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Tue, 10 Feb 2026 21:11:37 GMT

etag

"1594z55klbrsvje"

Good Warning Issue

Typography & Readability

Georgia + mayo-sans

65/100

Readability

/30

40/40

20px · LH 1.40

Hierarchy

/20

18/25

3.8x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

17/20

System fonts

Heading Font

Georgia

Serif76px

Body Font

mayo-sans

Sans20px

Contrast Ratio

Reading Comfort

~34 CPL

Needs attention

76px

20px

24px

20px

✅ Excellent readability: 20px body text is ideal for all devices.

✅ Optimal line spacing: 1.40 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.8x larger than body text.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

✅ Smart font loading: Using font-display: swap prevents invisible text during load.

⚠️ Risky: Text appears on background images without overlay protection.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

A/B Testing & Optimization

KameleoonEnterprise

Experimentation and conversion optimization

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(16)transcend-cdn.com(1)assets.mayoclinic.org(1)tagdelivery.mayoclinic.org(1)s.go-mpulse.net(1)

Sponsored

Last analyzed: 10 Feb 2026 at 21:11

Historical Analysis & Change Tracking