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

earthlink.net

https://earthlink.net· First analyzed 11 Feb 2026· Updated 11 Feb 2026

Export

earthlink.net

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.19.239.228

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

rihana.ns.cloudflare.com.carl.ns.cloudflare.com.

Performance

Page Speed

1.2 MB

171 requests

0–49

50–89

90–100

Architecture Stack

Hybrid

⚡ SSG

Frontend

Framework

Next.js

Styling

Tailwind CSS

CMS

WordPress

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Technology Stack

12 Technologies Detected

Analytics

Meta Frameworks

CSS Frameworks

Icon Libraries

Tag Managers

Other

CDN

Libraries

Plugins

SEO Analysis

A+94/100

earthlink.netearthlink.net

EarthLink | High-Speed Internet Plans & Reliable Coverage

Get faster internet and dependable service from America's best-rated, award-winning Internet Service Provider, EarthLink. Connecting you to what matters most!

Title Length57 chars

Recommended: 50-60 chars

Description Length158 chars

Recommended: 120-160 chars

Issues (0)

1 issues found

Upgrade to view details

Sponsored

Security Score

61%Fair

Interactive

HTTPS

WAF

89d

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

age

367939

cache-control

🔴 No Cache(max-age=10800,no-store, no-cache, must-revalidate, proxy-rev...)

cf-apo-via

tcache

cf-cache-status

HIT

cf-ray🇩🇪 Frankfurt

9cc003fd5cec9f46-FRA

content-encoding

⚡ Brotli(br)

Good Warning Issue

Typography & Readability

Montserrat

68/100

Readability

/30

40/40

20px · LH 1.50

Hierarchy

/20

20/25

1.84x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Montserrat

Sans37px

Body Font

Montserrat

Sans20px

Contrast Ratio

Reading Comfort

~34 CPL

Needs attention

37px

18px

36px

18px

20px

Minor Second

Scale

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

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

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

✅ Consistent design: Single font family with weight variations is a modern best practice.

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

Buy on MyFonts

Business & Marketing Stack

6 Tools Detected

Enterprise

Customer Support

LiveChatMid-Market

Live chat and helpdesk tools

Behavior Analytics

HotjarMid-Market

Microsoft ClarityFree

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

A/B Testing & Optimization

AB TastyMid-Market

Experimentation and conversion optimization

Sponsored

Scripts & Styles

25 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(10)googletagmanager.com(3)solutions.invocacdn.com(2)clarity.ms(2)pixel.byspotify.com(1)

Website Identity

earthlink.net

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Last analyzed: 11 Feb 2026 at 01:19

Historical Analysis & Change Tracking