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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metamask.io

https://metamask.io· First analyzed 14 Feb 2026· Updated 14 Feb 2026

Export

metamask.io

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

172.64.147.181

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

langston.ns.cloudflare.com.adelaide.ns.cloudflare.com.

Performance

Page Speed

2 MB

116 requests

Image Optimization

Lazy LoadWebPResponsiveVercel Image Optimization

0–49

50–89

90–100

Architecture Stack

JAMstack

🔀 Hybrid

Decoupled

Frontend

Framework

Next.js

API

Data Source

Headless CMS

Contentful

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Detected API Sources

//images.ctfassets.net/clixtyx...

Technology Stack

12 Technologies Detected

Other

GSAP Lottie

Analytics

Google Analytics

Google Analytics 4

Advertising

Twitter Ads LinkedIn Ads

Meta Frameworks

Other

CSS Frameworks

Tag Managers

Marketing

CDN

SEO Analysis

A+94/100

metamask.iometamask.io

MetaMask: The Leading Crypto Wallet for Bitcoin, Ethereum, Solana

Set up your crypto wallet, trade BTC, ETH, SOL and more. Enjoy total control over your data and assets. The go-to crypto wallet for 100+ million users.

Title Length65 chars

Recommended: 50-60 chars

Description Length151 chars

Recommended: 120-160 chars

Issues (0)

1 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

6 rules

Sitemap reference found

Sponsored

Security Score

81%Very Good

Interactive

HTTPS

WAF

76d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

01.02.2026

Valid Until

02.05.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

metamask.io*.metamask.io

SHA-256 Fingerprint

BE:18:71:34:3A:A5:E7:1D:2D:E7:D9:19:DB:E0:25:3C:48:07:B7:FE...

Upgrade to view header details

HTTP Headers

Developer Console

age

cache-control

🔴 No Cache(private, no-cache, no-store, max-age=0, must-revalidate)

cf-cache-status

DYNAMIC

cf-ray🇩🇪 Frankfurt

9cd9e27d3e054410-FRA

content-encoding

📦 Gzip(gzip)

content-security-policy

default-src 'self'; media-src 'self' https://*.twimg.com/ ht...

Good Warning Issue

Email Infrastructure

Google Workspace

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

smtp.google.com

Domain Information

metamask.io

Domain Age

10y 7m

Created

02.07.2015

Expires

02.07.2026

Last Updated

14.07.2025

Registrar

Cloudflare, Inc

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Data Protection Officer mentioned

Legitimate interest basis mentioned

Typography & Readability

MMPolyVariable + MMEuclidCircularB

70/100

Readability

/30

32/40

16px · LH 1.25

Hierarchy

/20

18/25

13.33x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

10/20

3 fonts

Heading Font

MMPolyVariable

Sans213px

Body Font

MMEuclidCircularB

Sans16px

Contrast Ratio

Reading Comfort

~38 CPL

Needs attention

213px

43px

21px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Strong hierarchy: Headlines are 13.3x larger than body text.

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

⚠️ Cramped layout: 38 elements lack adequate spacing.

✅ Clean layout: Consistent left alignment throughout.

Buy on MyFontsVariable Fonts

Business & Marketing Stack

9 Tools Detected

Enterprise

CRM Systems

HubSpotMid-Market

Customer Relationship Management platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Twitter/X AdsMid-Market

LinkedIn AdsEnterprise

Reddit PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

CookiebotMid-Market

OsanoMid-Market

Cookie consent and privacy compliance tools

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(16)gstatic.com(1)js.hubspot.com(1)static.ads-twitter.com(1)googletagmanager.com(1)

Website Identity

X (Twitter)Instagram LinkedIn GitHub TikTok Discord Reddit

Sponsored

Last analyzed: 14 Feb 2026 at 04:40

Historical Analysis & Change Tracking