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

autism.org.uk

https://autism.org.uk· First analyzed 18 Feb 2026· Updated 18 Feb 2026

Export

autism.org.uk

Sponsored

Hosting Provider

Microsoft Azure

azure.microsoft.com

IP Address

51.105.74.161

Server Location

🇬🇧 City of London, United Kingdom

ASN

AS8075

Organization

Microsoft Azure App Service (uksouth)

Server

Microsoft IIS

CDN

Cloudflare

WAF

Cloudflare

Nameservers

harmony.ns.cloudflare.com.ivan.ns.cloudflare.com.

Performance

Page Speed

604 KB

28 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Kentico

Technology Stack

10 Technologies Detected

CSS Frameworks

Tailwind CSS

Ant Design

Fonts

Adobe Fonts (Typekit)Adobe Fonts

Analytics

Libraries

Tag Managers

Web Servers

Frameworks

SEO Analysis

C67/100

autism.org.ukautism.org.uk

National Autistic Society

We are the UKs leading charity for autistic people and their families. Since 1962, we have been providing support, guidance and advice, as well as campaignin...

Description truncated.

Title Length25 chars

Recommended: 50-60 chars

Description Length263 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

4 issues found

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Crawlability

Sitemap

robots.txt

8 rules

Sitemap reference found

Sponsored

Security Score

21%Critical

Interactive

HTTPS

No WAF

55d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

30.12.2025

Valid Until

14.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.autism.org.uk

SHA-256 Fingerprint

97:09:28:D1:56:9D:A1:99:55:95:1D:87:32:D4:38:D4:48:64:61:ED...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🟡 1 Hours(private, max-age=4899)

content-encoding

📦 Gzip(gzip)

content-length

30347

content-type

text/html; charset=utf-8

date

Wed, 18 Feb 2026 06:43:35 GMT

expires

Wed, 18 Feb 2026 08:05:15 GMT

Good Warning Issue

Email Infrastructure

Barracuda

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

d207172.b.ess.uk.barracudanetworks.com

d207172.a.ess.uk.barracudanetworks.com

Domain Information

autism.org.uk

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Century Gothic

68/100

Readability

/30

40/40

16px · LH 1.50

Hierarchy

/20

25/25

2x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Century Gothic

Sans32px

Body Font

Century Gothic

Sans16px

Contrast Ratio

Reading Comfort

~44 CPL

Needs attention

32px

46px

16px

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.0x 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.

⚠️ Risky: Text appears on background images without overlay protection.

AAdobe Fonts Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

12 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(8)

Website Identity

Facebook Instagram LinkedIn YouTube

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Last analyzed: 18 Feb 2026 at 06:43

Historical Analysis & Change Tracking