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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utcluj.ro

https://utcluj.ro· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

utcluj.ro

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Hosting Provider

Universitatea Tehnica din Cluj-Napoca

IP Address

193.226.5.7

Server Location

🇷🇴 Cluj-Napoca, Romania

ASN

AS2614

Server

Apache

Nameservers

ns1.utcluj.ro.marmota.cluj.roedu.net.hercule.utcluj.ro.

Performance

Page Speed

1.7 MB

61 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Bootstrap

Infrastructure

Hosting

Universitatea Tehnica din Cluj-Napoca

Progressive Web App

PWA ReadyWeb ManifestService WorkerApple Touch IconTheme Color

Technology Stack

8 Technologies Detected

CSS Frameworks

Analytics

Libraries

Icon Libraries

Fonts

Web Servers

SEO Analysis

D58/100

utcluj.routcluj.ro

Universitatea Tehnică din Cluj-Napoca

Universitatea TehnicÄ din Cluj-Napoca este o instituČie de ĂŽnvÄČÄmĂ˘nt superior tehnic de stat din municipiul Cluj-Napoca, judeČul Cluj, RomĂ˘nia.

Title Length37 chars

Recommended: 50-60 chars

Description Length153 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

5 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

2 rules

Allows all crawlers

Sponsored

Security Score

10%Critical

No SSL

No WAF

N/A

Upgrade to view header details

HTTP Headers

Developer Console

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-length

13082

content-type

text/html; charset=utf-8

date

Fri, 20 Feb 2026 03:38:42 GMT

keep-alive

timeout=5, max=100

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

lists.utcluj.ro

Domain Information

utcluj.ro

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Typography & Readability

Open Sans

41/100

Readability

/30

32/40

14px · LH 1.71

Hierarchy

/20

8/25

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Open Sans

Sans

Body Font

Open Sans

Sans14px

Contrast Ratio

Reading Comfort

~35 CPL

Needs attention

38px

18px

14px

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

✅ Optimal line spacing: 1.71 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.

⚠️ Risky: Text appears on background images without overlay protection.

⚠️ Cramped layout: 6 elements lack adequate spacing.

GGoogle Fonts 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

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(15)cse.google.com(2)google-analytics.com(1)googletagmanager.com(1)google.com(1)

Website Identity

Facebook X (Twitter)Instagram YouTube

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Last analyzed: 20 Feb 2026 at 03:57

Historical Analysis & Change Tracking