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

processing.org

https://processing.org· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

processing.org

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

63.176.8.218

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS16509

Organization

AWS EC2 (eu-central-1)

Server

Netlify

Nameservers

dns1.p03.nsone.net.dns2.p03.nsone.net.dns3.p03.nsone.net.dns4.p03.nsone.net.

Performance

Page Speed

511 KB

26 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Hybrid

⚡ SSG

Frontend

Framework

Gatsby

CMS

Medium

Infrastructure

Hosting

Amazon Web Services (AWS)

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

5 Technologies Detected

CSS Frameworks

Meta Frameworks

Analytics

Platforms

SEO Analysis

D58/100

processing.orgprocessing.org

Welcome to Processing! / Processing.org

No description available for this page.

Title Length39 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

• Missing meta description - important for click-through rates

5 issues found

Upgrade to view details

Sponsored

Security Score

36%Critical

Interactive

HTTPS

No WAF

36d

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

Valid From

26.12.2025

Valid Until

26.03.2026

Subject Alternative Names (2)

*.processing.orgprocessing.org

SHA-256 Fingerprint

71:4D:14:D5:0F:2E:0F:C8:FA:AD:DB:CA:AF:FB:2B:58:38:7B:7E:C3...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

44339

cache-control

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

cache-status

"Netlify Edge"; hit

content-encoding

⚡ Brotli(br)

content-length

16653

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

MX Records (5)

aspmx3.googlemail.com

aspmx2.googlemail.com

aspmx.l.google.com

alt1.aspmx.l.google.com

+1 more

Domain Information

processing.org

Domain Age

22y 9m

Created

20.05.2003

Expires

20.05.2026

Last Updated

05.03.2024

Registrar

NameCheap, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Space Grotesk

76/100

Readability

/30

40/40

21px · LH 1.50

Hierarchy

/20

15/25

1.19x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Space Grotesk

Sans25px

Body Font

Space Grotesk

Sans21px

Contrast Ratio

Reading Comfort

~39 CPL

Needs attention

25px

36px

21px

18px

21px

✅ Excellent readability: 21px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

⚠️ 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.

✅ Protected text on images: Using gradient for readability.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

FathomSMB

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

8 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(4)cdn.usefathom.com(1)foundation-donate-banner.netlify.app(1)

Website Identity

Facebook Instagram GitHub Discord Mastodon Reddit Medium Bluesky

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Last analyzed: 17 Feb 2026 at 07:24

Historical Analysis & Change Tracking