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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qvc.com

https://qvc.com· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

qvc.com

Sponsored

Hosting Provider

Akamai International, BV

IP Address

23.215.20.144

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS16625

Organization

Akamai International, BV

Server

Apache

CDN

Akamai

WAF

Akamai

Nameservers

a1-21.akam.net.a11-66.akam.net.a8-66.akam.net.a26-67.akam.net.+2 more

Performance

Page Speed

406 KB

258 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Adobe Experience Manager

Technology Stack

10 Technologies Detected

Advertising

TikTok Pixel Microsoft Advertising Criteo

Analytics

Libraries

UI Components

CSS Frameworks

Web Servers

Customer Support

SEO Analysis

B72/100

qvc.comqvc.com

QVC | Shop QVC® For Today’s Special Value & Top Brands At The Offic...

Shop Online At The Official QVC Website. QVC.com Offers Deals And Special Values Every Day. Shop Beauty, Electronics, Fashion, Home, And More.

Title truncated.

Title Length75 chars

Recommended: 50-60 chars

Description Length142 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

robots.txt

444 rules

Sitemap reference found

Sponsored

Security Score

41%Poor

Interactive

HTTPS

WAF

370d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

02.02.2026

Valid Until

24.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (5)

www.qvc.comliveshopventures.comsune.comwww.liveshopventures.comwww.sune.com

SHA-256 Fingerprint

14:AD:95:FA:9D:1B:F8:34:49:7D:D5:C4:CD:5F:19:9F:13:4C:9F:45...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

akamai-grn-qvc.com

0.d0b31402.1771503136.26309dfc

cache-control

🟡 162s(max-age=162)

content-encoding

📦 Gzip(gzip)

content-type

text/html

date

Thu, 19 Feb 2026 12:12:16 GMT

server

Apache

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mx1.hsn.iphmx.com

mx2.hsn.iphmx.com

Domain Information

qvc.com

Domain Age

31y 3m

Created

16.11.1994

Expires

15.11.2027

Last Updated

14.10.2025

Registrar

MarkMonitor Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

TT Norms Medium

48/100

Readability

/30

12/40

10px · LH 1.25

Hierarchy

/20

18/25

2.8x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

TT Norms Medium

Sans28px

Body Font

TT Norms Medium

Sans10px

Contrast Ratio

Reading Comfort

~46 CPL

Optimal (45–75)

28px

26px

18px

16px

10px

❌ Critical: 10px body text is too small. Increase to at least 14px.

✅ Strong hierarchy: Headlines are 2.8x larger than body text.

✅ 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.

✅ Protected text on images: Using gradient for readability.

Buy on MyFonts

Business & Marketing Stack

12 Tools Detected

Enterprise

Behavior Analytics

Google AnalyticsFree

Quantum MetricEnterprise

Google Tag ManagerFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

TikTok PixelMid-Market

Microsoft AdsEnterprise

Reddit PixelMid-Market

Pinterest AdsMid-Market

CriteoEnterprise

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Social widgets and sharing tools

Affiliate & Partnerships

ImpactEnterprise

Affiliate networks and partner tracking

A/B Testing & Optimization

LaunchDarklyEnterprise

Experimentation and conversion optimization

Sponsored

Scripts & Styles

25 Resources

Scripts

Styles

Async

Defer

Top Script Sources

analytics.tiktok.com(3)cdn.branch.io(2)connect.facebook.net(2)chat.qvc.com(2)ob.astarsbuilding.com(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn TikTok Pinterest Threads

Sponsored

Last analyzed: 19 Feb 2026 at 12:12

Historical Analysis & Change Tracking