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

twitch.tv

https://twitch.tv· First analyzed 10 Feb 2026· Updated 10 Feb 2026

Export

twitch.tv

Mobile

Sponsored

Hosting Provider

Fastly, Inc.

IP Address

151.101.66.167

Server Location

🇨🇦 Montreal, Canada

ASN

AS54113

Organization

Fastly, Inc.

Nameservers

ns-1778.awsdns-30.co.uk.ns-219.awsdns-27.com.ns-664.awsdns-19.net.ns-1450.awsdns-53.org.

Performance

Page Speed

1.9 MB

156 requests

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

Fastly, Inc.

Detected API Sources

https://assets.twitch.tv/eppo/...

Technology Stack

2 Technologies Detected

CSS Frameworks

Tailwind CSS

Analytics

Google Analytics 4

SEO Analysis

D58/100

twitch.tvtwitch.tv

Twitch

Twitch is an interactive livestreaming service for content spanning gaming, entertainment, sports, music, and more.

Title Length6 chars

Recommended: 50-60 chars

Description Length115 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag - every page should have one H1
• Missing viewport meta tag - page may not be mobile-friendly

4 issues found

Upgrade to view details

Sponsored

Security Score

15%Critical

Critical / Transactional

HTTPS

No WAF

118d

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟡 0s(private, max-age=0)

content-encoding

⚡ Brotli(br)

content-type

text/html

date

Tue, 10 Feb 2026 19:39:27 GMT

strict-transport-security

max-age=31536000

vary

Accept-Encoding

Good Warning Issue

Typography & Readability

Roobert

59/100

Readability

/30

25/40

18px · LH 1.10

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Roobert

Body Font

Roobert

Sans18px

Contrast Ratio

Reading Comfort

Single Family

left aligned

18px

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

⚠️ Tight line spacing (1.10). Consider 1.4-1.6 for better readability.

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

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

Quantcast ChoiceMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

28 Resources

Scripts

Styles

Async

Defer

Top Script Sources

assets.twitch.tv(17)gstatic.com(1)pkedcjkdefgpdelpbcmbmeomcjbeemfm(1)enhhojjnijigcajfphajepfemndkmdlo(1)

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Last analyzed: 10 Feb 2026 at 19:39

Historical Analysis & Change Tracking