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

wdc.com

https://wdc.com· First analyzed 14 Feb 2026· Updated 14 Feb 2026

Export

wdc.com

Mobile

Sponsored

Hosting Provider

Akamai International, BV

IP Address

23.215.23.165

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS16625

Organization

Akamai International, BV

CDN

Fastly

Nameservers

emerie.ns.cloudflare.com.miguel.ns.cloudflare.com.

Performance

Page Speed

2.6 MB

70 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

Vue.js

Styling

Tailwind CSS

CMS

Adobe Experience Manager

Infrastructure

Hosting

Akamai International, BV

CDN

Fastly

Technology Stack

9 Technologies Detected

Frameworks

CSS Frameworks

Analytics

Tag Managers

Payments

Customer Support

SEO Analysis

B78/100

wdc.comwdc.com

High-Capacity HDDs for PCs, NAS, Gaming, Data Centers, and AI Data ...

Western Digital, leaders in digital storage solutions compatible with Mac and PC. FREE shipping, friendly support, and 30-day return policy on storage products.

Title truncated.

Title Length78 chars

Recommended: 50-60 chars

Description Length160 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

27 rules

Sitemap reference found

Sponsored

A+

Security Score

91%Excellent

Interactive

HTTPS

WAF

202d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

12.12.2025

Valid Until

04.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (20)

www.westerndigital.comapi-clouddev.westerndigital.comapi-cloudstage.westerndigital.comapi-clouduat.westerndigital.comapi-dev.westerndigital.comapi-uat.westerndigital.comapi.westerndigital.combeta.westerndigital.com+12 more

SHA-256 Fingerprint

72:00:CC:78:C9:A8:C6:54:71:98:A6:58:0B:50:1F:47:71:D1:0E:CA...

Upgrade to view header details

HTTP Headers

Developer Console

akamai-grn

0.a55e6cc1.1771071757.69057aa2

cache-control

🟡 2 Hours(public, max-age=7200, s-maxage=3600)

content-encoding

⚡ Brotli(br)

content-security-policy

frame-ancestors 'self' *.wd.com centinelapi.cardinalcommerce...

content-type

text/html;charset=utf-8

date

Sat, 14 Feb 2026 12:22:37 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

mx1.hgst.iphmx.com

mx2.hgst.iphmx.com

Domain Information

wdc.com

Domain Age

33y 9m

Created

15.05.1992

Expires

16.05.2027

Last Updated

12.05.2025

Registrar

CSC Corporate Domains, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

TrustArc

Cookie Consent Banner

TrustArc

GDPR Indicators

Cookie consent banner detected

CMP: TrustArc

Data Protection Officer mentioned

Typography & Readability

sans-serif

85/100

Readability

/30

32/40

14px · LH 1.50

Hierarchy

/20

25/25

4.71x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

sans-serif

Sans66px

Body Font

sans-serif

Sans14px

Contrast Ratio

Reading Comfort

~41 CPL

Needs attention

66px

48px

28px

14px

⚠️ Small text: 14px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 4.7x larger than body text.

✅ 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.

Business & Marketing Stack

6 Tools Detected

Enterprise

Customer Support

LiveChatMid-Market

Live chat and helpdesk tools

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

TrustArcEnterprise

Cookie consent and privacy compliance tools

Reviews & Social Proof

BazaarvoiceEnterprise

Customer reviews and testimonials

Sponsored

Scripts & Styles

19 Resources

Scripts

Styles

Async

Defer

Top Script Sources

assets.adobedtm.com(7)youtube.com(2)local(2)connect.facebook.net(2)consent.trustarc.com(2)

Website Identity

Facebook X (Twitter)Instagram LinkedIn YouTube

Sponsored

Last analyzed: 14 Feb 2026 at 12:23

Historical Analysis & Change Tracking