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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imgbox.com

https://imgbox.com· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

imgbox.com

Sponsored

Hosting Provider

LIP

IP Address

212.63.223.235

Server Location

🇸🇪 Stockholm, Sweden

ASN

AS50827

Organization

LIP

Server

Nginx

CDN

Cloudflare

WAF

Cloudflare

Nameservers

oswald.ns.cloudflare.com.gigi.ns.cloudflare.com.

Performance

Page Speed

609 KB

26 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

LIP

CDN

Cloudflare

Technology Stack

7 Technologies Detected

Analytics

Frameworks

Libraries

CSS Frameworks

Web Servers

Customer Support

SEO Analysis

D41/100

imgbox.comimgbox.com

imgbox - fast, simple image host

Use imgbox to upload, host and share all your images. It's simple, free and blazing fast!

Title Length32 chars

Recommended: 50-60 chars

Description Length89 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

7 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

2 rules

Sponsored

Security Score

21%Critical

Interactive

HTTPS

No WAF

289d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

GoGetSSL

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

03.11.2025

Valid Until

03.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.imgbox.comimgbox.com

SHA-256 Fingerprint

5B:6C:CE:B6:08:A1:0E:CB:E3:DE:59:62:F8:8A:62:B0:EB:CC:60:FA...

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

Content-Type, Access-Control-Allow-Headers, Cache-Control, A...

access-control-max-age

3600

access-control-request-method

GET,POST,OPTIONS

cache-control

🟡 0s(max-age=0, private, must-revalidate)

connection

keep-alive

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mail.imgbox.com

Domain Information

imgbox.com

Domain Age

17 years

Created

09.02.2009

Expires

09.02.2027

Last Updated

08.12.2025

Registrar

Gransy, s.r.o.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Karla

63/100

Readability

/30

32/40

14px · LH 1.43

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Karla

Sans

Body Font

Karla

Sans14px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

25px

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

✅ Optimal line spacing: 1.43 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.

⚠️ Inconsistent alignment: Mix of left/center/right creates visual noise.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Sponsored

Scripts & Styles

16 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(9)ajax.googleapis.com(4)googletagmanager.com(2)

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Last analyzed: 17 Feb 2026 at 23:24

Historical Analysis & Change Tracking