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

ravelry.com

https://ravelry.com· First analyzed 16 Feb 2026· Updated 16 Feb 2026

Export

ravelry.com

Sponsored

Hosting Provider

AxcelX Technologies LLC

IP Address

192.34.84.3

Server Location

🇺🇸 Boston, United States

ASN

AS33083

Server

Nginx

Nameservers

ns11.constellix.com.ns21.constellix.com.ns31.constellix.com.ns41.constellix.net.+2 more

Performance

Page Speed

1.8 MB

7 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

AxcelX Technologies LLC

Technology Stack

1 Technologies Detected

Web Servers

Nginx

SEO Analysis

D56/100

ravelry.comravelry.com

Ravelry

No description available for this page.

Title Length7 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

• Missing meta description - important for click-through rates

4 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

55 rules

Sponsored

Security Score

40%Poor

Critical / Transactional

HTTPS

No WAF

174d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

28.07.2025

Valid Until

09.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.ravelry.comravelry.com

SHA-256 Fingerprint

67:07:27:75:DE:A1:08:AA:FB:89:DF:DB:DC:47:BA:08:EA:43:DD:1C...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟡 0s(private, max-age=0, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-security-policy

script-src 'self' 'unsafe-inline' 'unsafe-eval' https://*.ra...

content-type

text/html; charset=utf-8

date

Mon, 16 Feb 2026 13:16:52 GMT

etag

W/"d2636dea656498b1332bb7f3b050db10"

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

alt4.aspmx.l.google.com

alt3.aspmx.l.google.com

alt1.aspmx.l.google.com

alt2.aspmx.l.google.com

+1 more

Domain Information

ravelry.com

Domain Age

19y 4m

Created

22.10.2006

Expires

22.10.2028

Last Updated

22.11.2025

Registrar

1API GmbH

DNSSEC

Not Enabled

Typography & Readability

Arial

78/100

Readability

/30

32/40

14px · LH 1.43

Hierarchy

/20

20/25

1.71x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Arial

Sans24px

Body Font

Arial

Sans14px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

24px

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

✅ Optimal line spacing: 1.43 ratio ensures comfortable reading.

✅ Good hierarchy: Clear distinction between headlines and 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.

Buy on MyFonts

Sponsored

Scripts & Styles

2 Resources

Scripts

Styles

Async

Defer

Top Script Sources

style-cdn.ravelrycache.com(2)

Sponsored

Last analyzed: 16 Feb 2026 at 13:17

Historical Analysis & Change Tracking