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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joy.link

https://joy.link· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

joy.link

Sponsored

Hosting Provider

Google Cloud Platform

cloud.google.com

IP Address

216.239.38.21

Server Location

🇺🇸 Austell, United States

ASN

AS15169

Organization

Google LLC

Server

Google Frontend

Nameservers

ns-cloud-e1.googledomains.com.ns-cloud-e3.googledomains.com.ns-cloud-e2.googledomains.com.ns-cloud-e4.googledomains.com.

Performance

Page Speed

31 KB

37 requests

Image Optimization

Lazy LoadWebP

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Bootstrap

Infrastructure

Hosting

Google Cloud Platform

Technology Stack

13 Technologies Detected

Libraries

jQueryv3.4.1

AOS

Other

AOS (Animate On Scroll)Lottie

CSS Frameworks

Analytics

Icon Libraries

Fonts

Tag Managers

Languages

Frameworks

Express

SEO Analysis

C64/100

joy.linkjoy.link

joy.link | Collection of the links you like

100% Free Forever! | No Coding & HTML | Build your page in 1 minute

Title Length43 chars

Recommended: 50-60 chars

Description Length67 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (19/19)

4 issues found

Upgrade to view details

Sponsored

Security Score

71%Good

Static / Informational

HTTPS

No WAF

77d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

06.02.2026

Valid Until

07.05.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

joy.link

SHA-256 Fingerprint

0B:A2:4E:AC:E8:2A:C8:2F:19:CC:C9:51:14:7F:1A:08:8F:22:B0:57...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=utf-8

date

Thu, 19 Feb 2026 15:03:55 GMT

etag

W/"914e-nxI1LM6ffbRgOzs1UQNGZ+WI2d4"

server

Google Frontend

vary

Accept-Encoding

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

aspmx.l.google.com

alt3.aspmx.l.google.com

alt4.aspmx.l.google.com

alt1.aspmx.l.google.com

+1 more

Domain Information

joy.link

Domain Age

5y 2m

Created

01.12.2020

Expires

01.12.2026

Last Updated

15.12.2025

Registrar

Porkbun LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Maven Pro + sans-serif

83/100

Readability

/30

30/40

16px · LH --

Hierarchy

/20

25/25

2.6x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Maven Pro

Sans42px

Body Font

sans-serif

Sans16px

Contrast Ratio

Reading Comfort

~41 CPL

Needs attention

42px

24px

16px

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

✅ Strong hierarchy: Headlines are 2.6x 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.

✅ Clean layout: Consistent left alignment throughout.

GGoogle Fonts Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

12 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(2)cdn.jsdelivr.net(2)unpkg.com(2)google-analytics.com(1)kit.fontawesome.com(1)

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Last analyzed: 19 Feb 2026 at 15:04

Historical Analysis & Change Tracking