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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lexisnexis.com

https://lexisnexis.com· First analyzed 12 Feb 2026· Updated 12 Feb 2026

Export

lexisnexis.com

Mobile

Sponsored

Hosting Provider

RELX inc

IP Address

138.12.4.174

Server Location

🇺🇸 Boca Raton, United States

ASN

AS32472

Organization

RELX inc

Server

OpenResty

CDN

CloudFront

Nameservers

ns3.lexisnexis.com.ns2.lexisnexis.com.ns4.lexisnexis.com.ns1.lexis-nexis.com.

Performance

Page Speed

1 MB

87 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

RELX inc

CDN

CloudFront

Technology Stack

15 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Matomo FullStory

Libraries

jQueryv3.7.1

Underscore.js

Advertising

LinkedIn Ads Microsoft Advertising

Other

CSS Frameworks

Tag Managers

Other

Web Servers

Customer Support

SEO Analysis

B72/100

lexisnexis.comlexisnexis.com

Welcome to LexisNexis - Choose Your Path

Provider of legal, government, business and high-tech information sources. Learn more or login to your product now.

Title Length40 chars

Recommended: 50-60 chars

Description Length115 chars

Recommended: 120-160 chars

Issues (2)

• Many images missing alt text (11/11)
• Missing viewport meta tag - page may not be mobile-friendly

3 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

50 rules

Sitemap reference found

Sponsored

Security Score

31%Critical

Interactive

HTTPS

No WAF

134d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

26.05.2025

Valid Until

27.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (4)

*.lexisnexis.comlexis-nexis.com*.lexis-nexis.comlexisnexis.com

SHA-256 Fingerprint

F6:35:0B:FE:5E:F5:81:98:13:28:BE:DE:56:29:5B:C9:5D:96:D8:92...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

age

248522

alt-svc

h3=":443"; ma=86400

content-encoding

📦 Gzip(gzip)

content-type

text/html;charset=UTF-8

date

Mon, 09 Feb 2026 20:32:41 GMT

server

openresty/1.21.4.1

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

lexisnexis-com.mail.protection.outlook.com

Domain Information

lexisnexis.com

Domain Age

28y 7m

Created

26.06.1997

Expires

25.06.2026

Last Updated

24.05.2025

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

Arial + sans-serif

48/100

Readability

/30

32/40

19px · LH 1.20

Hierarchy

/20

13/25

1.67x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Arial

Sans32px

Body Font

sans-serif

Sans19px

Contrast Ratio

Reading Comfort

Dual Sans-Serif

center aligned

32px

29px

19px

✅ Excellent readability: 19px body text is ideal for all devices.

✅ Good hierarchy: Clear distinction between headlines and body text.

✅ Good performance: Using 1 font families keeps load times fast.

✅ 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

11 Tools Detected

Enterprise

Behavior Analytics

FullStoryEnterprise

Google Tag ManagerFree

Google AnalyticsFree

Matomo (Piwik)Mid-Market

PendoEnterprise

User behavior and product analytics

Advertising

Facebook PixelMid-Market

LinkedIn AdsEnterprise

Microsoft AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

A/B Testing & Optimization

AB TastyMid-Market

Experimentation and conversion optimization

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(6)bat.bing.com(3)snap.licdn.com(3)connect.facebook.net(3)webanalytics.lexisnexis.com(2)

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Last analyzed: 12 Feb 2026 at 17:35

Historical Analysis & Change Tracking