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

justpaste.me

https://justpaste.me· First analyzed 16 Feb 2026· Updated 16 Feb 2026

Export

justpaste.me

Mobile

Sponsored

Hosting Provider

GoDaddy

godaddy.com

IP Address

160.153.129.212

Server Location

🇫🇷 Strasbourg, France

ASN

AS21499

Organization

GoDaddy.com, LLC

Server

Apache

Nameservers

ns70.domaincontrol.com.ns69.domaincontrol.com.

Performance

Page Speed

580 KB

70 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Bootstrap

Infrastructure

Hosting

GoDaddy

Technology Stack

11 Technologies Detected

CSS Frameworks

Analytics

Advertising

Google Ads Google AdSense

Libraries

Fonts

Web Servers

Languages

Security

SEO Analysis

D47/100

justpaste.mejustpaste.me

Just Paste Me

Free service for instant internet publishing. Create web page in a minute, or copy something and just paste it.

Title Length13 chars

Recommended: 50-60 chars

Description Length111 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

15 rules

Allows all crawlers

Sponsored

Security Score

21%Critical

Interactive

HTTPS

No WAF

88d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

14.02.2026

Valid Until

15.05.2026

Subject Alternative Names (2)

img.justpaste.mejustpaste.me

SHA-256 Fingerprint

88:17:A4:72:AF:F1:A4:FD:66:F2:82:9B:31:33:49:E5:89:FC:CF:21...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate)

content-encoding

⚡ Brotli(br)

content-length

4066

content-type

text/html; charset=UTF-8

date

Mon, 16 Feb 2026 12:28:34 GMT

expires

Thu, 19 Nov 1981 08:52:00 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

mail.justpaste.me

Domain Information

justpaste.me

Domain Age

9y 5m

Created

16.09.2016

Expires

16.09.2026

Last Updated

09.09.2025

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Typography & Readability

Helvetica Neue

73/100

Readability

/30

32/40

14px · LH 1.43

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Helvetica Neue

Body Font

Helvetica Neue

Sans14px

Contrast Ratio

Reading Comfort

~51 CPL

Optimal (45–75)

16px

14px

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

✅ Optimal line spacing: 1.43 ratio ensures comfortable reading.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

✅ Optimal line length: ~51 characters per line is comfortable to read.

GGoogle Fonts

Business & Marketing Stack

2 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Advertising

Google AdsEnterprise

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

19 Resources

Scripts

Styles

Async

Defer

Top Script Sources

justpaste.me(6)pagead2.googlesyndication.com(2)gstatic.com(1)google-analytics.com(1)google.com(1)

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Last analyzed: 16 Feb 2026 at 12:28

Historical Analysis & Change Tracking