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

skincancer.org

https://skincancer.org· First analyzed 16 Feb 2026· Updated 16 Feb 2026

Export

skincancer.org

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

172.67.68.164

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

khloe.ns.cloudflare.com.khalid.ns.cloudflare.com.

Performance

Page Speed

1.8 MB

87 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Bootstrap

CMS

WordPressv6.8.3

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Technology Stack

26 Technologies Detected

Plugins

Activecampaign Subscription Forms Quiz Maker Scf Image Filter Ultimate Carousel For Visual Composer 3D Flipbook Dflip Lite Js_Composer Add To Any Microsoft Advertising Universal Event Tracking Uet Responsive Menu Gtranslate Accuweather Widget Megamenu

Wpforms User Journey

Yoast SEO

Libraries

jQueryv3.7.1

Underscore.js Animate.css

CSS Frameworks

Analytics

Other

Icon Libraries

Tag Managers

Advertising

Microsoft Advertising

CDN

Cloudflare

SEO Analysis

A+94/100

skincancer.orgskincancer.org

Official Website

Get the best skin cancer information: medically reviewed facts on prevention, early detection, risks, causes & treatment.

Title Length16 chars

Recommended: 50-60 chars

Description Length121 chars

Recommended: 120-160 chars

Issues (0)

1 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

2 rules

Allows all crawlers

Sponsored

Security Score

31%Critical

Interactive

HTTPS

WAF

44d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

02.01.2026

Valid Until

02.04.2026

Subject Alternative Names (1)

www.skincancer.org

SHA-256 Fingerprint

C8:20:CC:E0:0C:F0:4F:A8:00:03:10:FE:27:A2:F0:BE:14:78:55:9E...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

date

Mon, 16 Feb 2026 14:06:06 GMT

content-type

text/html; charset=UTF-8

cf-apo-via

tcache

report-to

{"group":"cf-nel", "max_age":604800, "endpoints":[{"url":"ht...

nel

{"report_to":"cf-nel", "success_fraction":0.0, "max_age":604...

cf-ray🇩🇪 Frankfurt

9ced9a883aafdb0a-FRA

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

skincancer-org.mail.protection.outlook.com

Domain Information

skincancer.org

Domain Age

28y 12m

Created

27.02.1997

Expires

28.02.2029

Last Updated

27.04.2024

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Notice (WP)

Cookie Consent Banner

Cookie Notice (WP)

GDPR Indicators

Cookie consent banner detected

CMP: Cookie Notice (WP)

Typography & Readability

europa + serif

81/100

Readability

/30

40/40

18px · LH 1.45

Hierarchy

/20

18/25

3.93x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

europa

Sans69px

Body Font

serif

Serif18px

Contrast Ratio

Reading Comfort

~55 CPL

Optimal (45–75)

69px

31px

38px

18px

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.45 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.9x larger than body text.

✅ Good performance: Using 2 font families keeps load times fast.

✅ Optimal line length: ~55 characters per line is comfortable to read.

⚠️ Cramped layout: 25 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Microsoft AdsEnterprise

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

skincancer.org(7)googletagmanager.com(3)diffuser-cdn.app-us1.com(2)bat.bing.com(2)static.addtoany.com(2)

Website Identity

skincancer.org

28 years old

Network Solutions, LLC📧 Microsoft 365

Social Profiles

Facebook X (Twitter)Instagram LinkedIn YouTube Pinterest

Sponsored

Last analyzed: 16 Feb 2026 at 14:06

Historical Analysis & Change Tracking