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

diy.com

https://diy.com· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

diy.com

Sponsored

Hosting Provider

Btnet

IP Address

81.148.198.27

Server Location

🇬🇧 Barnet, United Kingdom

ASN

AS2856

Organization

Btnet

Server

CloudFront

CDN

CloudFront

Nameservers

ns0.bt.net.ns2.bt.net.ns1.bt.net.

Performance

Page Speed

766 KB

188 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Tailwind CSS

Infrastructure

Hosting

Btnet

CDN

CloudFront

Progressive Web App

Web ManifestTheme Color

Technology Stack

9 Technologies Detected

Analytics

Customer Support

Frameworks

CSS Frameworks

Tag Managers

Other

CDN

SEO Analysis

A88/100

diy.comdiy.com

DIY Products at Everyday Low Prices at B&Q

Shop for everything you need to complete your home and garden project. Order online for 1hr Click+Collect, or free home delivery on orders over £75.

Title Length42 chars

Recommended: 50-60 chars

Description Length148 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

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Crawlability

Sitemap

robots.txt

48 rules

Sitemap reference found

Sponsored

Security Score

76%Good

Interactive

HTTPS

No WAF

195d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

30.07.2025

Valid Until

31.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (9)

www.diy.comprod.diy.comprod11-storefront.diy.comcheckout.diy.commig1.diy.commig2.diy.commig1.checkout.diy.commig2.checkout.diy.com+1 more

SHA-256 Fingerprint

18:1F:7E:55:D1:5B:7D:E4:D9:2D:7D:EB:24:42:33:71:B1:40:E1:35...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

age

405

apigw-requestid

Y6aChjgDjoEEJug=

cache-control

🔴 No Cache(no-cache)

content-encoding

⚡ Brotli(br)

content-security-policy

default-src * 'unsafe-inline' 'unsafe-eval' ; child-src blob...

content-type

text/html; charset=utf-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

relay1.bt.net

mailhost.diy.com

Domain Information

diy.com

Domain Age

28y 7m

Created

10.07.1997

Expires

09.07.2030

Last Updated

09.06.2021

Registrar

Nom-iq Ltd. dba COM LAUDE

DNSSEC

Not Enabled

Privacy & Compliance

TrustArc

Cookie Consent Banner

TrustArc

GDPR Indicators

Cookie consent banner detected

CMP: TrustArc

Data Protection Officer mentioned

Typography & Readability

GoodHome

79/100

Readability

/30

40/40

16px · LH 1.50

Hierarchy

/20

18/25

2x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

GoodHome

Sans32px

Body Font

GoodHome

Sans16px

Contrast Ratio

Reading Comfort

~39 CPL

Needs attention

32px

20px

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.

✅ Smart font loading: Using font-display: swap prevents invisible text during load.

Buy on MyFonts

Business & Marketing Stack

6 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

ContentsquareEnterprise

User behavior and product analytics

Advertising

Facebook PixelMid-Market

TikTok PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

TrustArcEnterprise

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

18 Resources

Scripts

Styles

Async

Defer

Top Script Sources

tags.tiqcdn.com(6)googletagmanager.com(4)dma.diy.com(1)cdns.brsrvr.com(1)diy.com(1)

Website Identity

Facebook X (Twitter)Instagram YouTube TikTok Pinterest

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Last analyzed: 17 Feb 2026 at 06:33

Historical Analysis & Change Tracking