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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datacenterdynamics.com

https://datacenterdynamics.com· First analyzed 15 Feb 2026· Updated 15 Feb 2026

Export

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.26.8.68

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

uma.ns.cloudflare.com.wesley.ns.cloudflare.com.

Performance

Page Speed

1.1 MB

100 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

11 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Microsoft Clarity Segment

Advertising

Google Ads LinkedIn Ads

CSS Frameworks

Icon Libraries

Fonts

Tag Managers

CDN

SEO Analysis

D58/100

datacenterdynamics.comdatacenterdynamics.com

Data center industry news, analysis, and opinion - DCD

DatacenterDynamics is the world's largest data center publication. We publish news, magazine features, and podcasts about the hyperscale & cloud, colocation ...

Description truncated.

Title Length54 chars

Recommended: 50-60 chars

Description Length346 chars

Recommended: 120-160 chars

Issues (0)

6 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

19 rules

Sponsored

Security Score

54%Poor

Interactive

HTTPS

WAF

86d

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

11.02.2026

Valid Until

12.05.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

datacenterdynamics.com*.datacenterdynamics.com

SHA-256 Fingerprint

C7:1B:FE:3F:D0:01:F9:26:DC:F4:CA:86:25:97:E1:6B:9C:60:82:97...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

age

947

alt-svc

h3=":443"; ma=86400

cache-control

🟡 4 Hours(public, max-age=14400, s-maxage=1200, stale-while-revalidate...)

cf-cache-status

HIT

cf-ray🇩🇪 Frankfurt

9ce17b33eb1fdc4a-FRA

content-encoding

⚡ Brotli(br)

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (7)

alt2.aspmx.l.google.com

aspmx.l.google.com

aspmx2.googlemail.com

aspmx4.googlemail.com

+3 more

Domain Information

datacenterdynamics.com

Domain Age

23y 1m

Created

14.01.2003

Expires

14.01.2027

Last Updated

16.12.2025

Registrar

Marcaria International LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Typography & Readability

Plus Jakarta Sans + sans-serif

66/100

Readability

/30

32/40

24px · LH 1.33

Hierarchy

/20

11/25

0.67x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Plus Jakarta Sans

Sans16px

Body Font

sans-serif

Sans24px

Contrast Ratio

Reading Comfort

~42 CPL

Needs attention

16px

24px

Perfect Fifth

Scale

✅ Excellent readability: 24px body text is ideal for all devices.

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

✅ 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: 100 elements lack adequate spacing.

GGoogle Fonts

Business & Marketing Stack

8 Tools Detected

Enterprise

Marketing Automation

MarketoEnterprise

Email marketing and automation platforms

Behavior Analytics

Microsoft ClarityFree

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

LinkedIn AdsEnterprise

AdRollMid-Market

Google AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

Quantcast ChoiceMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

24 Resources

Scripts

Styles

Async

Defer

Top Script Sources

s.adroll.com(3)munchkin.marketo.net(2)googletagmanager.com(2)static.addtoany.com(2)scripts.clarity.ms(1)

Website Identity

datacenterdynamics.com

23 years old

Marcaria International LLC📧 Google Workspace

Social Profiles

Facebook X (Twitter)LinkedIn

Sponsored

Last analyzed: 15 Feb 2026 at 02:48

Historical Analysis & Change Tracking