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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sizzling-hot-deluxe-slot.com

https://sizzling-hot-deluxe-slot.com· First analyzed 16 Feb 2026· Updated 16 Feb 2026

Export

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

188.114.97.3

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

CloudFlare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

phil.ns.cloudflare.com.linda.ns.cloudflare.com.

Performance

Page Speed

1.2 MB

108 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

Frontend

Framework

jQuery

Styling

Bootstrap

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Detected API Sources

https://www.google.com/recaptc...

Technology Stack

17 Technologies Detected

Plugins

Comment Validation

Contact Form 7

Google Captcha Universal Banner Popup Wp Tt Rating Stars Wp Tt Content Manager

UI Components

Owl Carousel Fancybox

CSS Frameworks

Analytics

Libraries

Fonts

Tag Managers

CDN

Security

SEO Analysis

D58/100

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Description truncated.

Title Length67 chars

Recommended: 50-60 chars

Description Length202 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (24/35)

5 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

23 rules

Sitemap reference found

Sponsored

Security Score

26%Critical

Interactive

HTTPS

WAF

77d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

03.02.2026

Valid Until

04.05.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

sizzling-hot-deluxe-slot.com*.sizzling-hot-deluxe-slot.com

SHA-256 Fingerprint

40:64:4A:C8:E0:A5:6B:24:57:42:0F:4A:2F:17:6B:BC:87:FB:5B:07...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cache-control

🟡 3s(max-age=3, must-revalidate)

cf-cache-status

DYNAMIC

cf-ray🇩🇪 Frankfurt

9cedcde9ad284f95-FRA

content-encoding

zstd

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

sizzling-hot-deluxe-slot.com

Domain Age

9y 8m

Created

20.06.2016

Expires

20.06.2026

Last Updated

03.06.2025

Registrar

NameCheap, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Typography & Readability

Open Sans Condensed + sans-serif

67/100

Readability

/30

24/40

14px · LH 1.30

Hierarchy

/20

25/25

2.36x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Open Sans Condensed

Sans33px

Body Font

sans-serif

Sans14px

Contrast Ratio

Reading Comfort

~33 CPL

Needs attention

33px

24px

14px

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

✅ Strong hierarchy: Headlines are 2.4x larger than body text.

✅ Good performance: Using 2 font families keeps load times fast.

✅ Consistent design: Single font family with weight variations is a modern best practice.

✅ Protected text on images: Using text-shadow for readability.

⚠️ Cramped layout: 7 elements lack adequate spacing.

GGoogle Fonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

sizzling-hot-deluxe-slot.com(15)gstatic.com(1)mc.yandex.ru(1)google-analytics.com(1)googletagmanager.com(1)

Website Identity