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

bandzone.cz

https://bandzone.cz· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

bandzone.cz

Sponsored

Hosting Provider

Kaora s.r.o.

IP Address

94.124.105.123

Server Location

🇨🇿 Olomouc, Czechia

ASN

AS42000

Organization

Kaora s.r.o.

Server

Apache

Nameservers

dns42.cloudns.net.dns43.cloudns.net.dns44.cloudns.net.dns41.cloudns.net.

Performance

Page Speed

1 MB

121 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Kaora s.r.o.

Technology Stack

12 Technologies Detected

Analytics

Libraries

Advertising

Google Ads Google AdSense

UI Components

CSS Frameworks

Icon Libraries

Fonts

Web Servers

SEO Analysis

D56/100

bandzone.czbandzone.cz

Bandzone.cz

Nejrozsáhlejší komunita kapel, DJs, MCs a jejich fanoušků na českém internetu. Profily více jak 35 000 skupin a 180 000 fanoušků. Písničky k poslechnutí, MP3...

Description truncated.

Title Length11 chars

Recommended: 50-60 chars

Description Length234 chars

Recommended: 120-160 chars

Issues (1)

• Missing viewport meta tag - page may not be mobile-friendly

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

robots.txt

12 rules

Sitemap reference found

Sponsored

Security Score

31%Critical

Interactive

HTTPS

No WAF

42d

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/1.1

Valid From

03.01.2026

Valid Until

03.04.2026

Subject Alternative Names (3)

bandzone.czblog.bandzone.czwww.bandzone.cz

SHA-256 Fingerprint

73:CB:2D:7D:65:FF:7C:94:40:5F:30:07:32:49:11:12:60:C4:12:21...

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, post-check=0, pre-check...)

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-length

10499

content-type

text/html; charset=UTF-8

date

Fri, 20 Feb 2026 03:21:22 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

edith.bandzone.cz

Domain Information

bandzone.cz

Domain Age

21y 1m

Created

18.01.2005

Expires

17.01.2027

Last Updated

02.05.2023

Registrar

REG-INTERNET-CZ

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

Arial CE + Helvetica

68/100

Readability

/30

20/40

12px · LH 1.50

Hierarchy

/20

25/25

2x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Arial CE

Sans24px

Body Font

Helvetica

Sans12px

Contrast Ratio

Reading Comfort

Dual Sans-Serif

left aligned

24px

20px

14px

23px

12px

Minor Second

Scale

❌ Critical: 12px body text is too small. Increase to at least 14px.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

✅ Good performance: Using 2 font families keeps load times fast.

✅ Protected text on images: Using text-shadow for readability.

⚠️ Cramped layout: 38 elements lack adequate spacing.

GGoogle Fonts Buy on MyFonts

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Advertising

Google AdsEnterprise

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

pagead2.googlesyndication.com(3)connect.facebook.net(3)youtube.com(2)gstatic.com(2)local(2)

Website Identity

Facebook X (Twitter)Instagram YouTube

Sponsored

Last analyzed: 20 Feb 2026 at 03:21

Historical Analysis & Change Tracking