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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unhcr.org

https://unhcr.org· First analyzed 11 Feb 2026· Updated 11 Feb 2026

Export

unhcr.org

Mobile

Sponsored

Hosting Provider

Unicc

IP Address

146.247.14.139

Server Location

🇨🇭 Geneva, Switzerland

ASN

AS8659

Organization

Unicc

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns-808.awsdns-37.net.ns-1127.awsdns-12.org.ns-1747.awsdns-26.co.uk.ns-399.awsdns-49.com.

Performance

Page Speed

1.8 MB

65 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Bootstrap

CMS

Drupal

Infrastructure

Hosting

Unicc

CDN

Cloudflare

Technology Stack

11 Technologies Detected

Analytics

CSS Frameworks

Libraries

Other

Icon Libraries

Tag Managers

Advertising

CDN

SEO Analysis

A+90/100

unhcr.orgunhcr.org

UNHCR, the UN Refugee Agency | UNHCR

UNHCR, the UN Refugee Agency, is a global organization dedicated to saving lives and protecting the rights of refugees, forcibly displaced communities and st...

Description truncated.

Title Length36 chars

Recommended: 50-60 chars

Description Length172 chars

Recommended: 120-160 chars

Issues (0)

1 issues found

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Sponsored

Security Score

71%Good

Interactive

HTTPS

WAF

299d

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

age

cache-control

🟢 1 Year(max-age=31536000, public)

cf-cache-status

HIT

cf-ray🇩🇪 Frankfurt

9cc278ca3c3fdcc9-FRA

content-encoding

⚡ Brotli(br)

content-language

Good Warning Issue

Typography & Readability

ProximaNova

88/100

Readability

/30

40/40

18px · LH 1.40

Hierarchy

/20

25/25

2.33x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

ProximaNova

Sans42px

Body Font

ProximaNova

Sans18px

Contrast Ratio

Reading Comfort

~38 CPL

Needs attention

42px

32px

26px

18px

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

✅ Optimal line spacing: 1.40 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.3x larger than body text.

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

✅ 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

4 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

17 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(4)connect.facebook.net(2)local(2)platform.twitter.com(2)unhcr.slgnt.eu(1)

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Last analyzed: 11 Feb 2026 at 08:28

Historical Analysis & Change Tracking