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

ulule.com

https://ulule.com· First analyzed 14 Feb 2026· Updated 14 Feb 2026

Export

ulule.com

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.20.41.44

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

sara.ns.cloudflare.com.derek.ns.cloudflare.com.

Performance

Page Speed

24 KB

67 requests

Image Optimization

Lazy LoadResponsiveimgix

0–49

50–89

90–100

Architecture Stack

JAMstack

⚡ SSG

Decoupled

Frontend

Framework

Next.js

API

Data Source

Headless CMS

Contentful

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Detected API Sources

https://images.ctfassets.net/g...

Technology Stack

14 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Plausible Analytics Plausible

Fonts

Google Fonts Adobe Fonts (Typekit)Adobe Fonts

Meta Frameworks

Other

CSS Frameworks

Tag Managers

Reviews

CDN

SEO Analysis

C62/100

ulule.comulule.com

Ulule

Ulule makes it easy to take action and develop creative, sustainable projects. Crowdfunding, certified training courses and a store of sustainable brands.

Title Length5 chars

Recommended: 50-60 chars

Description Length154 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (9/17)

4 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

11 rules

Sponsored

Security Score

59%Poor

Interactive

HTTPS

WAF

83d

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

07.02.2026

Valid Until

08.05.2026

Subject Alternative Names (2)

*.ulule.comulule.com

SHA-256 Fingerprint

81:D6:91:D3:E4:FF:7F:49:25:AF:18:21:80:30:9D:E5:17:39:E2:0F...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-credentials

true

access-control-allow-headers

X-CSRF-Token, Authorization, DNT, Keep-Alive, User-Agent, X-...

access-control-allow-methods

DELETE, GET, POST, OPTIONS, PATCH, PUT

cf-cache-status

DYNAMIC

cf-ray🇩🇪 Frankfurt

9cdc5165ff333635-FRA

content-encoding

⚡ Brotli(br)

Good Warning Issue

Email Infrastructure

Google Workspace

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (5)

alt2.aspmx.l.google.com

alt1.aspmx.l.google.com

alt3.aspmx.l.google.com

alt4.aspmx.l.google.com

+1 more

Domain Information

ulule.com

Domain Age

16y 2m

Created

24.11.2009

Expires

24.11.2032

Last Updated

03.12.2025

Registrar

Gandi SAS

DNSSEC

Not Enabled

Privacy & Compliance

Axeptio

Cookie Consent Banner

Axeptio

GDPR Indicators

Cookie consent banner detected

CMP: Axeptio

Typography & Readability

sofia-pro + sans-serif

51/100

Readability

/30

20/40

13px · LH 1.50

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

sofia-pro

Sans

Body Font

sans-serif

Sans13px

Contrast Ratio

Reading Comfort

~41 CPL

Needs attention

16px

13px

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ 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.

⚠️ Cramped layout: 57 elements lack adequate spacing.

GGoogle Fonts AAdobe Fonts Buy on MyFonts

Business & Marketing Stack

7 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

PlausibleSMB

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Microsoft AdsEnterprise

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Social widgets and sharing tools

Reviews & Social Proof

TrustpilotMid-Market

Customer reviews and testimonials

Sponsored

Scripts & Styles

25 Resources

Scripts

Styles

Async

Defer

Top Script Sources

next.ulule.com(16)connect.facebook.net(2)static.axept.io(1)googletagmanager.com(1)

Website Identity

Facebook Instagram LinkedIn YouTube TikTok

Sponsored

Last analyzed: 14 Feb 2026 at 11:45

Historical Analysis & Change Tracking