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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lighttpd.net

https://lighttpd.net· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

lighttpd.net

Sponsored

Hosting Provider

Hetzner

hetzner.com

IP Address

5.9.70.195

Server Location

🇩🇪 Falkenstein, Germany

ASN

AS24940

Organization

Hetzner

Server

lighttpd/2.0.0

Nameservers

ns1.lighttpd.net.ns2.stbuehler.de.ns1.stbuehler.de.

Performance

Page Speed

72 KB

7 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Bootstrap

Infrastructure

Hosting

Hetzner

Technology Stack

3 Technologies Detected

CSS Frameworks

Bootstrap

Tailwind CSS

Libraries

jQueryv1.8.3

SEO Analysis

D41/100

lighttpd.netlighttpd.net

Home - Lighttpd - fly light

No description available for this page.

Title Length27 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description - important for click-through rates
• Missing viewport meta tag - page may not be mobile-friendly

7 issues found

Upgrade to view details

Sponsored

Security Score

36%Critical

Interactive

HTTPS

No WAF

50d

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/1.1

Valid From

11.01.2026

Valid Until

11.04.2026

Subject Alternative Names (20)

admin.lighttpd.netblog.lighttpd.netcgit.lighttpd.netci.lighttpd.netdebian.lighttpd.netdoc.lighttpd.netdownload.lighttpd.netgerrit.lighttpd.net+12 more

SHA-256 Fingerprint

2C:0F:67:8E:3B:F6:FD:7F:FA:DF:E2:73:5C:C1:F4:65:C1:9D:31:D7...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

content-encoding

📦 Gzip(gzip)

content-length

2084

content-type

text/html

date

Thu, 19 Feb 2026 22:11:28 GMT

etag

"4280488046"

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mail.lighttpd.net

Domain Information

lighttpd.net

Domain Age

21y 2m

Created

04.12.2004

Expires

04.12.2026

Last Updated

05.12.2025

Registrar

Hetzner Online GmbH

DNSSEC

Not Enabled

Typography & Readability

Tahoma

53/100

Readability

/30

32/40

14px · LH 1.43

Hierarchy

/20

18/25

2x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Tahoma

Sans28px

Body Font

Tahoma

Sans14px

Contrast Ratio

Reading Comfort

~36 CPL

Needs attention

28px

21px

16px

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 2.0x 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.

⚠️ Risky: Text appears on background images without overlay protection.

Buy on MyFonts

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Scripts & Styles

4 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(2)

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Last analyzed: 19 Feb 2026 at 22:11

Historical Analysis & Change Tracking