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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icons8.com

https://icons8.com· First analyzed 13 Feb 2026· Updated 13 Feb 2026

Export

icons8.com

Mobile

Sponsored

Hosting Provider

H4Y Technologies LLC, Tier.Net Technologies LLC

IP Address

192.158.231.226

Server Location

🇺🇸 Charlotte, United States

ASN

AS397423

Organization

H4Y Technologies LLC, Tier.Net Technologies LLC

CDN

Proxy Cache

Nameservers

ns-1483.awsdns-57.org.ns-1885.awsdns-43.co.uk.ns-248.awsdns-31.com.ns-595.awsdns-10.net.

Performance

Page Speed

84 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Hybrid

⚙️ SSR

Frontend

Framework

Nuxt.js

CMS

WordPress

Infrastructure

Hosting

H4Y Technologies LLC, Tier.Net Technologies LLC

CDN

Proxy Cache

Technology Stack

6 Technologies Detected

Meta Frameworks

CSS Frameworks

Fonts

Customer Support

Security

Analytics

SEO Analysis

A85/100

icons8.comicons8.com

Free Icons, Clipart Illustrations, Photos, and Music

Download design elements for free: icons, photos, vector illustrations, and music for your videos. All the assets made by designers → consistent quality ⚡️

Title Length52 chars

Recommended: 50-60 chars

Description Length155 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

343 rules

Sitemap reference found

Sponsored

Security Score

66%Fair

Interactive

HTTPS

No WAF

41d

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

26.12.2025

Valid Until

26.03.2026

Subject Alternative Names (1)

icons8.com

SHA-256 Fingerprint

D7:60:09:E9:97:81:5D:F3:6C:35:B0:14:97:9B:D2:B9:18:04:D4:EE...

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

DNT,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since...

access-control-allow-methods

GET, OPTIONS

access-control-allow-origin

access-control-max-age

1728000

cache-control

🟡 1800s(public, max-age=1800)

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

aspmx.l.google.com

alt3.aspmx.l.google.com

+1 more

Domain Information

icons8.com

Domain Age

14y 4m

Created

04.10.2011

Expires

04.10.2030

Last Updated

16.01.2025

Registrar

Porkbun LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

apple-system

88/100

Readability

/30

40/40

16px · LH 1.50

Hierarchy

/20

25/25

2.5x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

apple-system

Sans40px

Body Font

apple-system

Sans16px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

40px

32px

18px

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.5x 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.

✅ Smart font loading: Using font-display: swap prevents invisible text during load.

Buy on MyFonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

1 Resources

Scripts

Styles

Async

Defer

Top Script Sources

maxst.icons8.com(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn YouTube TikTok Pinterest Dribbble

Sponsored

Last analyzed: 13 Feb 2026 at 04:49

Historical Analysis & Change Tracking