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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sportsdirect.com

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

Export

sportsdirect.com

Sponsored

Hosting Provider

Akamai Technologies, Inc.

IP Address

23.45.46.208

Server Location

🇺🇸 Chicago, United States

ASN

AS20940

Organization

Akamai Technologies, Inc.

CDN

Akamai

WAF

Akamai

Nameservers

ns2.netnames.net.ns5.netnames.net.ns6.netnames.net.ns1.netnames.net.

Performance

Page Speed

1.4 MB

69 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Optimizely CMS (Episerver)

Technology Stack

7 Technologies Detected

Meta Frameworks

Libraries

UI Components

CSS Frameworks

Analytics

Tag Managers

Other

SEO Analysis

D55/100

sportsdirect.comsportsdirect.com

Sports Direct UK: Sports Shoes, Sportswear & Equipment

No description available for this page.

Title Length54 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description - important for click-through rates
• Missing H1 tag - every page should have one H1

5 issues found

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Security Score

0%Critical

Critical / Transactional

HTTPS

WAF

181d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

30.09.2025

Valid Until

18.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (20)

www.sportsdirect.comau.sportsdirect.comauth.sportsdirect.combg.sportsdirect.comdev-maps.sportsdirect.comdev-theguide.sportsdirect.comendless-aisle-test.sportsdirect.comendless-aisle.sportsdirect.com+12 more

SHA-256 Fingerprint

59:FB:D3:B3:05:DB:5E:45:7A:19:1E:55:F8:1F:A9:50:26:54:C9:DA...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-type

text/html

x-sd-pagetype

Home

sd-x-ws

vary

Accept-Encoding

x-akamai-transformed

0 - 0 -

content-encoding

📦 Gzip(gzip)

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

sportsdirect-com.mail.protection.outlook.com

Domain Information

sportsdirect.com

Domain Age

30 years

Created

11.02.1996

Expires

12.02.2027

Last Updated

08.02.2026

Registrar

CSC Corporate Domains, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Data Protection Officer mentioned

Typography & Readability

arial

51/100

Readability

/30

20/40

13px · LH 1.40

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

arial

Sans

Body Font

arial

Sans13px

Contrast Ratio

Reading Comfort

~118 CPL

Needs attention

20px

16px

13px

❌ Critical: 13px body text is too small. Increase to at least 14px.

✅ Optimal line spacing: 1.40 ratio ensures comfortable reading.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

✅ 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.

✅ Protected text on images: Using gradient for readability.

Business & Marketing Stack

4 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

A/B Testing & Optimization

OptimizelyEnterprise

Experimentation and conversion optimization

Sponsored

Scripts & Styles

26 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(11)cdn-ukwest.onetrust.com(3)googletagmanager.com(1)sportsdirect.com(1)cdn.optimizely.com(1)

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Last analyzed: 17 Feb 2026 at 13:27

Historical Analysis & Change Tracking