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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baeldung.com

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

Export

baeldung.com

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

172.66.43.8

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

lakas.ns.cloudflare.com.meera.ns.cloudflare.com.

Performance

Page Speed

667 KB

48 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

Baeldungv4.8.5

by Baeldung

View Theme

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

12 Technologies Detected

Analytics

Plugins

Other

CSS Frameworks

Fonts

Email Marketing

Advertising

CDN

SEO Analysis

C64/100

baeldung.combaeldung.com

Baeldung

In-depth, to-the-point tutorials on Java, Spring, Spring Boot, Security, and REST.

Title Length8 chars

Recommended: 50-60 chars

Description Length82 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

4 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

30 rules

Sitemap reference found

Sponsored

Security Score

78%Good

Static / Informational

HTTPS

WAF

54d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

13.01.2026

Valid Until

13.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

baeldung.com*.baeldung.com

SHA-256 Fingerprint

BA:2A:FC:24:CF:18:02:F7:0D:CD:05:D4:13:E0:07:56:9B:24:4E:64...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

age

18853

alt-svc

h3=":443"; ma=86400

cache-control

🟡 12 Hours(max-age=43200)

cf-apo-via

tcache

cf-cache-status

HIT

cf-edge-cache

cache,platform=wordpress

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

alt2.aspmx.l.google.com

alt1.aspmx.l.google.com

alt3.aspmx.l.google.com

alt4.aspmx.l.google.com

+1 more

Domain Information

baeldung.com

Domain Age

14y 5m

Created

02.09.2011

Expires

02.09.2028

Last Updated

10.10.2024

Registrar

NameCheap, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Notice (WP)

Cookie Consent Banner

Cookie Notice (WP)

GDPR Indicators

Cookie consent banner detected

CMP: Cookie Notice (WP)

Data Protection Officer mentioned

Typography & Readability

Raleway

58/100

Readability

/30

32/40

14px · LH 1.60

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Raleway

Sans

Body Font

Raleway

Sans14px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

23px

20px

18px

14px

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

✅ Optimal line spacing: 1.60 ratio ensures comfortable reading.

✅ 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.

⚠️ Cramped layout: 10 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

5 Tools Detected

Enterprise

Marketing Automation

DripE-commerce

Email marketing and automation platforms

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

Quantcast ChoiceMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

19 Resources

Scripts

Styles

Async

Defer

Top Script Sources

api.getdrip.com(3)baeldung.com(3)a.pub.network(3)cdn.privacy-mgmt.com(3)connect.facebook.net(2)

Sponsored

Last analyzed: 17 Feb 2026 at 09:31

Historical Analysis & Change Tracking