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

mstdn.social

https://mstdn.social· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

mstdn.social

Sponsored

Hosting Provider

Hetzner

hetzner.com

IP Address

188.34.142.224

Server Location

🇩🇪 Falkenstein, Germany

ASN

AS24940

Organization

Hetzner Online GmbH

Server

Mastodon

Nameservers

hydrogen.ns.hetzner.com.oxygen.ns.hetzner.com.helium.ns.hetzner.de.

Performance

Page Speed

1.6 MB

147 requests

Image Optimization

Lazy LoadWebPAVIF

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Hetzner

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

1 Technologies Detected

CSS Frameworks

Tailwind CSS

SEO Analysis

D47/100

mstdn.socialmstdn.social

Live feeds - Mastodon 🐘

A general-purpose Mastodon server with a 500 character limit. All languages are welcome.

Title Length23 chars

Recommended: 50-60 chars

Description Length88 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (6/7)

7 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

6 rules

Sponsored

Security Score

81%Very Good

Interactive

HTTPS

No WAF

81d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

11.02.2026

Valid Until

12.05.2026

Subject Alternative Names (2)

mstdn.socialwww.mstdn.social

SHA-256 Fingerprint

51:F5:94:37:B3:51:5B:18:65:2B:21:38:B1:98:DB:A4:C2:BE:03:C0...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟡 15s(max-age=15, public, stale-while-revalidate=30, stale-if-erro...)

content-encoding

📦 Gzip(gzip)

content-security-policy

base-uri 'none'; default-src 'none'; frame-ancestors 'none';...

content-type

text/html; charset=utf-8

date

Thu, 19 Feb 2026 10:12:35 GMT

etag

W/"aa7ccaf4838a80628d5d5b82c4bacdd0"

Good Warning Issue

Email Infrastructure

Proton Mail

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mailsec.protonmail.ch

mail.protonmail.ch

Domain Information

mstdn.social

Domain Age

6y 3m

Created

01.11.2019

Expires

01.11.2026

Last Updated

31.10.2025

Registrar

Porkbun LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

mastodon-font-sans-serif

45/100

Readability

/30

12/40

13px · LH 1.38

Hierarchy

/20

8/25

1.23x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

mastodon-font-sans-serif

Sans16px

Body Font

mastodon-font-sans-serif

Sans13px

Contrast Ratio

Reading Comfort

~38 CPL

Needs attention

16px

13px

❌ Critical: 13px body text is too small. Increase to at least 14px.

⚠️ 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.

✅ Clean layout: Consistent left alignment throughout.

Buy on MyFonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

9 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(3)

Website Identity

mstdn.social

6 years old

Porkbun LLC📧 Proton Mail

Social Profiles

GitHub

Sponsored

Last analyzed: 19 Feb 2026 at 10:12

Historical Analysis & Change Tracking