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

webkit.org

https://webkit.org· First analyzed 14 Feb 2026· Updated 14 Feb 2026

Export

webkit.org

Mobile

Sponsored

Hosting Provider

Apple Inc

IP Address

17.33.192.58

Server Location

🇺🇸 Cupertino, United States

ASN

AS714

Organization

Apple Inc

Server

Apple

Nameservers

ns-334.awsdns-41.com.ns-920.awsdns-51.net.ns-1488.awsdns-58.org.ns-1679.awsdns-17.co.uk.

Performance

Page Speed

3.8 MB

14 requests

Image Optimization

WebP

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9

cms

WebKitv1.0

by The WebKit Team

View Theme

Technology Stack

1 Technologies Detected

CSS Frameworks

Tailwind CSS

SEO Analysis

D50/100

webkit.orgwebkit.org

WebKit

No description available for this page.

Title Length6 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description - important for click-through rates
• Many images missing alt text (1/1)

5 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

8 URLs

robots.txt

4 rules

Sitemap reference found

Sponsored

Security Score

56%Poor

Interactive

HTTPS

No WAF

82d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Apple Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

10.02.2026

Valid Until

07.05.2026

OCSP Stapling

Enabled

Subject Alternative Names (7)

queues.webkit.orgblogs.webkit.orgwebkit.orgwordpress-prod.webkit.orgwww.webkit.orgnightly.webkit.orgwww2.webkit.org

SHA-256 Fingerprint

42:A9:E2:FF:98:1C:05:79:57:E3:B8:F7:09:08:BB:B0:CB:B9:3A:3B...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Sat, 14 Feb 2026 14:09:18 GMT

link

<https://webkit.org/wp-json/>; rel="https://api.w.org/", <ht...

server

Apple

strict-transport-security

max-age=31536000; includeSubdomains

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (5)

mx-in-vib.apple.com

mx-in-rno.apple.com

mx-in-hfd.apple.com

mx-in.g.apple.com

+1 more

Domain Information

webkit.org

Domain Age

20y 6m

Created

23.08.2005

Expires

23.08.2026

Last Updated

23.08.2025

Registrar

Nom-iq Ltd. dba COM LAUDE

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

-apple-system

96/100

Readability

/30

40/40

22px · LH 1.45

Hierarchy

/20

21/25

2.18x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

-apple-system

Sans48px

Body Font

-apple-system

Sans22px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

48px

22px

✅ Excellent readability: 22px body text is ideal for all devices.

✅ Optimal line spacing: 1.45 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.2x 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.

✅ Clean layout: Consistent left alignment throughout.

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

5 Resources

Scripts

Styles

Async

Defer

Top Script Sources

shynet.webkit.org(1)webkit.org(1)

Website Identity

GitHub

Sponsored

Last analyzed: 14 Feb 2026 at 14:09

Historical Analysis & Change Tracking