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

catholic.org

https://catholic.org· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

catholic.org

Sponsored

Hosting Provider

SourceDNS

IP Address

69.16.233.11

Server Location

🇺🇸 Lansing, United States

ASN

AS32244

Organization

SourceDNS

Server

Nginx

Nameservers

ns54.domaincontrol.com.ns53.domaincontrol.com.

Performance

Page Speed

451 KB

30 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Bootstrap

CMS

WordPress

Infrastructure

Hosting

SourceDNS

Technology Stack

14 Technologies Detected

Analytics

CSS Frameworks

Meta Frameworks

Libraries

Other

Icon Libraries

Email Marketing

Advertising

Web Servers

Languages

Customer Support

SEO Analysis

A84/100

catholic.orgcatholic.org

Catholic Online - World's Catholic Library

World's Catholic Library. Find saints, prayers, bible, daily readings, catholic news and everything Catholic.

Title Length42 chars

Recommended: 50-60 chars

Description Length109 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

21 URLs

robots.txt

29 rules

Sponsored

Security Score

56%Poor

Interactive

HTTPS

No WAF

88d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

15.02.2026

Valid Until

16.05.2026

Subject Alternative Names (2)

catholic.orgwww.catholic.org

SHA-256 Fingerprint

8C:91:82:80:CE:2F:C9:6F:22:6D:D2:EF:22:B4:79:A1:70:B6:1A:6A...

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

Tue, 17 Feb 2026 10:37:16 GMT

server

nginx

strict-transport-security

max-age=15768000

x-content-type-options

nosniff

Good Warning Issue

Email Infrastructure

Rackspace Email

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mx2.emailsrvr.com

mx1.emailsrvr.com

Domain Information

catholic.org

Domain Age

31y 3m

Created

16.11.1994

Expires

15.11.2034

Last Updated

15.06.2025

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Helvetica Neue

85/100

Readability

/30

32/40

14px · LH 1.43

Hierarchy

/20

18/25

3.16x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Helvetica Neue

Sans44px

Body Font

Helvetica Neue

Sans14px

Contrast Ratio

Reading Comfort

~40 CPL

Needs attention

44px

30px

24px

18px

14px

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

✅ Optimal line spacing: 1.43 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.2x 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

3 Tools Detected

Advanced

Marketing Automation

MailchimpSMB

Email marketing and automation platforms

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Sponsored

Scripts & Styles

7 Resources

Scripts

Styles

Async

Defer

Top Script Sources

securepubads.g.doubleclick.net(2)google-analytics.com(1)googletagmanager.com(1)

Website Identity

Facebook X (Twitter)Instagram YouTube Pinterest

Sponsored

Last analyzed: 17 Feb 2026 at 10:37

Historical Analysis & Change Tracking