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

caddy.community

https://caddy.community· First analyzed 16 Feb 2026· Updated 16 Feb 2026

Export

caddy.community

Sponsored

Hosting Provider

DigitalOcean

digitalocean.com

IP Address

159.89.152.193

Server Location

🇺🇸 Santa Clara, United States

ASN

AS14061

Organization

DigitalOcean, LLC

Server

Nginx

CDN

Cloudflare

WAF

Cloudflare

Nameservers

pearl.ns.cloudflare.com.pranab.ns.cloudflare.com.

Performance

Page Speed

1.7 MB

112 requests

Image Optimization

Responsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

DigitalOcean

CDN

Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

8 Technologies Detected

Analytics

Web Servers

Libraries

CSS Frameworks

Icon Libraries

Customer Support

SEO Analysis

B72/100

caddy.communitycaddy.community

Caddy Community

Discussion about Caddy and the modern Web

Title Length15 chars

Recommended: 50-60 chars

Description Length41 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (61/63)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

3 URLs

robots.txt

36 rules

Sitemap reference found

Sponsored

Security Score

40%Poor

Critical / Transactional

HTTPS

No WAF

71d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

29.01.2026

Valid Until

29.04.2026

Subject Alternative Names (1)

caddy.community

SHA-256 Fingerprint

3E:CC:53:2A:82:B8:A5:07:11:94:01:E6:12:2B:66:94:B5:1E:87:31...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=2592000

cache-control

🔴 No Cache(no-cache, no-store)

content-encoding

⚡ Brotli(br)

content-security-policy

upgrade-insecure-requests; base-uri 'self'; object-src 'none...

content-type

text/html; charset=utf-8

cross-origin-opener-policy

same-origin-allow-popups

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

Domain Information

caddy.community

Domain Age

8y 10m

Created

22.04.2017

Expires

22.04.2026

Last Updated

06.06.2025

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

Arial + Nunito

91/100

Readability

/30

40/40

18px · LH 1.40

Hierarchy

/20

25/25

2x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Arial

Sans36px

Body Font

Nunito

Sans18px

Contrast Ratio

Reading Comfort

Dual Sans-Serif

left aligned

36px

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.40 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

✅ Good performance: Using 2 font families keeps load times fast.

✅ Protected text on images: Using gradient for readability.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(18)google-analytics.com(1)googletagmanager.com(1)

Website Identity

GitHub

Sponsored

Last analyzed: 16 Feb 2026 at 20:53

Historical Analysis & Change Tracking