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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autoexpress.co.uk

https://autoexpress.co.uk· First analyzed 15 Feb 2026· Updated 15 Feb 2026

Export

autoexpress.co.uk

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

3.83.210.219

Server Location

🇺🇸 Ashburn, United States

ASN

AS14618

Organization

AWS EC2 (us-east-1)

Server

CloudFront

CDN

CloudFront

Nameservers

ns-1116.awsdns-11.org.ns-1798.awsdns-32.co.uk.ns-419.awsdns-52.com.ns-816.awsdns-38.net.

Performance

Page Speed

2.5 MB

143 requests

Image Optimization

Lazy LoadResponsiveimgix

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

Technology Stack

10 Technologies Detected

Analytics

Other

CSS Frameworks

Fonts

Tag Managers

Advertising

CDN

Frameworks

SEO Analysis

A82/100

autoexpress.co.ukautoexpress.co.uk

Auto Express | New and Used Car Reviews, News & Advice

Every new car reviewed and rated by Auto Express road test experts. Plus used car reviews, group tests and in-depth video reviews.

Title Length54 chars

Recommended: 50-60 chars

Description Length130 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

8 URLs

robots.txt

17 rules

Sitemap reference found

Sponsored

Security Score

21%Critical

Interactive

HTTPS

No WAF

184d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

20.07.2025

Valid Until

18.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (4)

autoexpress.co.ukprod.autoviadev.co.uk*.autoexpress.co.uk*.prod.autoviadev.co.uk

SHA-256 Fingerprint

AC:D0:61:12:B1:6F:1E:94:3A:62:24:C7:34:39:DA:CD:EF:58:36:54...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

age

285

cache-control

🟡 0s(public, max-age=0, s-maxage=300, stale-while-revalidate=8640...)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Sun, 15 Feb 2026 07:34:35 GMT

etag

W/"15af7c-RihjqzLsYfcojIzCzKJCW6QmzUA"

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

aspmx.l.google.com

aspmx2.googlemail.com

aspmx3.googlemail.com

alt2.aspmx.l.google.com

+1 more

Domain Information

autoexpress.co.uk

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

Data Protection Officer mentioned

Data subject rights referenced

Typography & Readability

Oldschool Grotesk Compressed

56/100

Readability

/30

25/40

36px · LH 0.89

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Oldschool Grotesk Compressed

Sans

Body Font

Oldschool Grotesk Compressed

Sans36px

Contrast Ratio

Reading Comfort

~38 CPL

Needs attention

64px

90px

64px

36px

Minor Second

Scale

✅ Excellent readability: 36px body text is ideal for all devices.

⚠️ Tight line spacing (0.89). Consider 1.4-1.6 for better readability.

✅ Good performance: Using 2 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.

⚠️ Cramped layout: 108 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

AmplitudeMid-Market

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

Quantcast ChoiceMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

21 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(9)securepubads.g.doubleclick.net(2)cdn.onesignal.com(2)cdn.amplitude.com(1)aex-mms.autoexpress.co.uk(1)

Website Identity

Facebook X (Twitter)Instagram YouTube

Sponsored

Last analyzed: 15 Feb 2026 at 07:39

Historical Analysis & Change Tracking