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.

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clarivate.com

https://clarivate.com· First analyzed 13 Feb 2026· Updated 13 Feb 2026

Export

clarivate.com

Mobile

Sponsored

Hosting Provider

Pantheon

pantheon.io

IP Address

23.185.0.4

Server Location

🇺🇸 San Francisco, United States

ASN

AS54113

Organization

Pantheon

Server

Nginx

CDN

Fastly

Nameservers

ha4.markmonitor.zone.ha1.markmonitor.zone.ha2.markmonitor.zone.ha3.markmonitor.zone.

Performance

Page Speed

1.9 MB

142 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Tailwind CSS

CMS

WordPress

Infrastructure

Hosting

Pantheon

CDN

Fastly

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

23 Technologies Detected

Plugins

Wp Views Extended Widget Options Convertplug Native Lazyload

Pantheon Wordpress Edge Integrations

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Microsoft Clarity

Advertising

Google Ads LinkedIn Ads Microsoft Advertising Criteo

Frameworks

Libraries

UI Components

CSS Frameworks

Icon Libraries

Fonts

Tag Managers

Other

Web Servers

Customer Support

SEO Analysis

A+100/100

clarivate.comclarivate.com

Clarivate - Leading Global Transformative Intelligence

Clarivate aims to fuel the world's greatest breakthroughs through enriched data, insights, analytics, workflow solutions and expert services. Find out more.

Title Length54 chars

Recommended: 50-60 chars

Description Length156 chars

Recommended: 120-160 chars

Sponsored

Security Score

81%Very Good

Interactive

HTTPS

No WAF

41d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

26.12.2025

Valid Until

26.03.2026

Subject Alternative Names (2)

clarivate.comwww.clarivate.com

SHA-256 Fingerprint

40:D6:0A:EF:83:8D:6E:CE:84:7C:20:33:17:3E:13:09:4B:8F:CE:3D...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

cache-control

🟡 1 Hours(public, max-age=3600)

content-encoding

📦 Gzip(gzip)

content-security-policy

script-src 'self' 'unsafe-inline' 'unsafe-eval' data: blob: ...

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

clarivate-com.mail.protection.outlook.com

Domain Information

clarivate.com

Domain Age

17y 4m

Created

01.10.2008

Expires

01.10.2026

Last Updated

30.08.2025

Registrar

MarkMonitor Inc.

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Data Protection Officer mentioned

Typography & Readability

Clarivate Semibold + Clarivate Regular

81/100

Readability

/30

40/40

20px · LH 1.50

Hierarchy

/20

21/25

3.5x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Clarivate Semibold

Sans70px

Body Font

Clarivate Regular

Sans20px

Contrast Ratio

Reading Comfort

~82 CPL

Needs attention

70px

36px

20px

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.5x larger than body text.

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

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

✅ Protected text on images: Using gradient for readability.

GGoogle Fonts Buy on MyFonts

Business & Marketing Stack

9 Tools Detected

Enterprise

Behavior Analytics

Microsoft ClarityFree

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

LinkedIn AdsEnterprise

Reddit PixelMid-Market

Microsoft AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

A/B Testing & Optimization

VWO (Visual Website Optimizer)Mid-Market

Experimentation and conversion optimization

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(8)connect.facebook.net(3)assistant.woorank.com(2)snap.licdn.com(2)cdn.bizible.com(1)

Website Identity

clarivate.com

17 years old

MarkMonitor Inc.📧 Microsoft 365

Social Profiles

Facebook X (Twitter)Instagram LinkedIn

Sponsored

Last analyzed: 13 Feb 2026 at 02:38

Historical Analysis & Change Tracking