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

repairmywindowsanddoors.co.uk

https://repairmywindowsanddoors.co.uk· First analyzed 18 Feb 2026· Updated 18 Feb 2026

Export

Sponsored

Hosting Provider

Unlimited Web Hosting UK LTD

IP Address

149.255.62.79

Server Location

🇬🇧 London, United Kingdom

ASN

AS34931

Organization

Unlimited Web Hosting UK LTD

Server

Nginx

Nameservers

ns0.thundercloud.uk.ns1.thundercloud.uk.

Performance

Page Speed

584 KB

35 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

Executive Prov3.2.3

by StudioPress

View Theme

Technology Stack

8 Technologies Detected

Plugins

Genesis Blocks Auto Terms Of Service And Privacy Policy Simple Social Icons Genesis Responsive Slider

Libraries

CSS Frameworks

Fonts

Web Servers

SEO Analysis

D56/100

repairmywindowsanddoors.co.ukrepairmywindowsanddoors.co.uk

Double Glazing Repairs | Window and Door Repair | Glass Repair

uPVC repair specialists. Aluminium windows and doors repaired. Glass Repaired, glass replaced. Misty double glazing replaced. Locks, handles and hinges repaired

Title Length62 chars

Recommended: 50-60 chars

Description Length160 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (7/12)

5 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

4 rules

Sitemap reference found

Sponsored

Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

41d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

01.01.2026

Valid Until

01.04.2026

Subject Alternative Names (2)

*.repairmywindowsanddoors.co.ukrepairmywindowsanddoors.co.uk

SHA-256 Fingerprint

67:F8:7B:18:B8:E9:D4:D0:80:10:82:80:CF:14:1D:91:79:DF:A1:A0...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache)

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=UTF-8

date

Wed, 18 Feb 2026 09:47:45 GMT

last-modified

Wed, 18 Feb 2026 04:14:24 GMT

server

nginx

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

repairmywindowsanddoors.co.uk

Domain Information

repairmywindowsanddoors.co.uk

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Helvetica Neue

70/100

Readability

/30

40/40

16px · LH 1.60

Hierarchy

/20

25/25

2.25x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Helvetica Neue

Sans36px

Body Font

Helvetica Neue

Sans16px

Contrast Ratio

Reading Comfort

~36 CPL

Needs attention

36px

24px

16px

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

✅ Optimal line spacing: 1.60 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.2x 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.

GGoogle Fonts Buy on MyFonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

19 Resources

Scripts

Styles

Async

Defer

Top Script Sources

repairmywindowsanddoors.co.uk(11)

Website Identity

X (Twitter)Instagram

Sponsored

Last analyzed: 18 Feb 2026 at 09:47

Historical Analysis & Change Tracking