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

cpj.org

https://cpj.org· First analyzed 15 Feb 2026· Updated 15 Feb 2026

Export

cpj.org

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

172.66.137.61

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ruth.ns.cloudflare.com.logan.ns.cloudflare.com.

Performance

Page Speed

2.5 MB

87 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

React

CMS

WordPressv6.8.3

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

18 Technologies Detected

Plugins

Analytics

Libraries

Fonts

Adobe Fonts (Typekit)Adobe Fonts

Frameworks

CSS Frameworks

Icon Libraries

Tag Managers

Advertising

CDN

Security

SEO Analysis

B76/100

cpj.orgcpj.org

Committee to Protect Journalists – Defending Journalists Worldwide....

Latest press freedom news from around the globe.

Title truncated.

Title Length102 chars

Recommended: 50-60 chars

Description Length48 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (7/12)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Sponsored

Security Score

41%Poor

Interactive

HTTPS

WAF

68d

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

Valid From

24.01.2026

Valid Until

24.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

cpj.org*.cpj.org

SHA-256 Fingerprint

CA:AC:83:6D:3D:03:D0:DA:91:35:B6:EC:8B:B1:15:42:AE:CC:94:6A...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟡 300s(max-age=300, must-revalidate)

cf-cache-status

DYNAMIC

cf-ray🇩🇪 Frankfurt

9ce0cd8b4a7bd294-FRA

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=UTF-8

date

Sun, 15 Feb 2026 00:49:00 GMT

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (4)

alt1.aspmx.l.google.com

aspmx.l.google.com

alt2.aspmx.l.google.com

alt3.aspmx.l.google.com

Domain Information

cpj.org

Domain Age

30y 11m

Created

26.03.1995

Expires

27.03.2027

Last Updated

31.01.2026

Registrar

Gandi SAS

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Data Protection Officer mentioned

Typography & Readability

warnock-pro + serif

71/100

Readability

/30

32/40

24px · LH 1.21

Hierarchy

/20

18/25

4.17x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

warnock-pro

Serif100px

Body Font

serif

Serif24px

Contrast Ratio

Reading Comfort

~39 CPL

Needs attention

100px

40px

22px

24px

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

✅ Strong hierarchy: Headlines are 4.2x larger than body text.

✅ 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.

✅ Protected text on images: Using gradient for readability.

AAdobe Fonts Buy on MyFonts

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Twitter/X AdsMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

27 Resources

Scripts

Styles

Async

Defer

Top Script Sources

cpj.org(9)googletagmanager.com(3)google-analytics.com(2)cdn.cookielaw.org(2)static.ads-twitter.com(1)

Website Identity

cpj.org

30 years old

Gandi SAS📧 Google Workspace

Social Profiles

Facebook X (Twitter)Instagram YouTube

Sponsored

Last analyzed: 15 Feb 2026 at 00:49

Historical Analysis & Change Tracking