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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tut.fi

https://tut.fi· First analyzed 18 Feb 2026· Updated 18 Feb 2026

Export

tut.fi

Sponsored

Hosting Provider

Tampere University of Technology

IP Address

193.166.164.199

Server Location

🇫🇮 Tampere, Finland

ASN

AS1741

Organization

Tampere University of Technology

Server

Apache

Nameservers

ns2.tuni.fi.ns-secondary.funet.fi.ns1.tuni.fi.

Performance

Page Speed

1.4 MB

24 requests

Image Optimization

Lazy LoadResponsiveVercel Image Optimization

0–49

50–89

90–100

Architecture Stack

Hybrid

⚙️ SSR

Frontend

Framework

Next.js

Infrastructure

Hosting

Tampere University of Technology

CDN

Vercel Image

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

3 Technologies Detected

Meta Frameworks

Next.js

CSS Frameworks

Tailwind CSS

Web Servers

Apachev2

SEO Analysis

A84/100

tut.fitut.fi

Etusivu | Tampereen korkeakouluyhteisö

Tampereen korkeakouluyhteisön muodostavat Tampereen yliopisto ja Tampereen ammattikorkeakoulu. Yhdessä rakennamme uutta mallia suomalaiseen korkeakoulut...

Title Length38 chars

Recommended: 50-60 chars

Description Length155 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (11/11)

1 issues found

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Security Score

81%Very Good

Interactive

HTTPS

No WAF

239d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Hellenic Academic and Research Institutions CA

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

15.10.2025

Valid Until

15.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

tuni.fiwww.tuni.fi

SHA-256 Fingerprint

75:DB:47:9C:8D:0E:42:E1:75:C1:08:A0:75:8A:4B:23:B0:1D:86:7E...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔵 Public(public, s-maxage=10, stale-while-revalidate=59)

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-security-policy

connect-src wss: https:; upgrade-insecure-requests; object-s...

content-type

text/html; charset=utf-8

date

Wed, 18 Feb 2026 04:21:11 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (3)

mail.tuni.fi

mail1.tuni.fi

mail2.tuni.fi

Domain Information

tut.fi

Domain Age

35y 1m

Created

01.01.1991

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

Typography & Readability

Open Sans

72/100

Readability

/30

24/40

14px · LH 1.29

Hierarchy

/20

25/25

2.29x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Open Sans

Sans32px

Body Font

Open Sans

Sans14px

Contrast Ratio

Reading Comfort

~35 CPL

Needs attention

32px

22px

14px

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

✅ Strong hierarchy: Headlines are 2.3x larger than body text.

✅ Good performance: Using 2 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.

⚠️ Cramped layout: 17 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

User behavior and product analytics

Advertising

Microsoft AdsEnterprise

Ad platforms and retargeting pixels

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Scripts & Styles

11 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(8)cdn.cookiehub.eu(1)

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Last analyzed: 18 Feb 2026 at 04:21

Historical Analysis & Change Tracking