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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ipfs.io

https://ipfs.io· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

ipfs.io

Sponsored

Hosting Provider

Protocol Labs

IP Address

209.94.90.1

Server Location

🇺🇸 San Francisco, United States

ASN

AS40680

Organization

Protocol Labs

Server

GitHub.com

CDN

Fastly

Nameservers

clarissa.ns.cloudflare.com.tate.ns.cloudflare.com.

Performance

Page Speed

1.7 MB

11 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Protocol Labs

CDN

Fastly

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

3 Technologies Detected

Libraries

jQuery

CSS Frameworks

Tailwind CSS

Icon Libraries

Font Awesome

SEO Analysis

C64/100

ipfs.ioipfs.io

About the IPFS.io Public Gateway

IPFS.io Public Gateway - Free public service to access IPFS content through your web browser. Bridge between HTTP and decentralized IPFS protocol without ins...

Description truncated.

Title Length32 chars

Recommended: 50-60 chars

Description Length174 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (4/5)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

5 URLs

robots.txt

15 rules

Allows all crawlers

Sponsored

Security Score

71%Good

Static / Informational

HTTPS

No WAF

56d

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

14.01.2026

Valid Until

14.04.2026

Subject Alternative Names (1)

about.ipfs.io

SHA-256 Fingerprint

1C:C6:BE:4B:DF:77:80:FC:8F:34:50:DA:E1:CF:38:F8:52:75:BF:41...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

access-control-allow-origin

age

259

cache-control

🟡 600s(max-age=600)

content-encoding

📦 Gzip(gzip)

content-length

4889

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

alt1.aspmx.l.google.com

alt2.aspmx.l.google.com

aspmx.l.google.com

alt3.aspmx.l.google.com

+1 more

Domain Information

ipfs.io

Domain Age

11y 9m

Created

16.05.2014

Expires

16.05.2026

Last Updated

10.05.2025

Registrar

CSC Corporate Domains, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Typography & Readability

Helvetica

78/100

Readability

/30

40/40

26px · LH 1.65

Hierarchy

/20

18/25

3.18x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Helvetica

Sans84px

Body Font

Helvetica

Sans26px

Contrast Ratio

Reading Comfort

~37 CPL

Needs attention

84px

54px

26px

✅ Excellent readability: 26px body text is ideal for all devices.

✅ Optimal line spacing: 1.65 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.2x 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.

⚠️ Inconsistent alignment: Mix of left/center/right creates visual noise.

Buy on MyFonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

3 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(1)

Website Identity

X (Twitter)LinkedIn GitHub

Sponsored

Last analyzed: 17 Feb 2026 at 02:16

Historical Analysis & Change Tracking