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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cba.pl

https://cba.pl· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

cba.pl

Sponsored

Hosting Provider

Leaseweb

leaseweb.com

IP Address

95.211.144.68

Server Location

🇳🇱 Haarlem, The Netherlands

ASN

AS60781

Organization

LeaseWeb Netherlands B.V.

Server

Nginx

Performance

Page Speed

4 MB

40 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Leaseweb

Technology Stack

7 Technologies Detected

Libraries

Analytics

Customer Support

Web Servers

Languages

SEO Analysis

B70/100

cba.plcba.pl

CBA.pl - Najlepszy i najpopularniejszy darmowy hosting

Darmowy hosting CBA.pl oferuje: nawet 10 GB miejsca na stronę oraz pocztę, rejestrację domen, obsługę PHP, bazy danych MySQL oraz rozbudowany panel. Darmowy ...

Description truncated.

Title Length54 chars

Recommended: 50-60 chars

Description Length180 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

19 rules

Sponsored

Security Score

55%Poor

Critical / Transactional

HTTPS

No WAF

89d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

16.02.2026

Valid Until

17.05.2026

Subject Alternative Names (4)

cba.plmail.cba.plmail2.cba.plwww.cba.pl

SHA-256 Fingerprint

EF:64:70:17:FB:AB:B8:4E:61:83:05:F7:C2:81:65:E8:31:76:8C:2D...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache)

content-encoding

⚡ Brotli(br)

content-security-policy

frame-ancestors 'self'

content-type

text/html; charset=utf-8

date

Tue, 17 Feb 2026 02:18:22 GMT

expires

Tue, 17 Feb 2026 02:18:12 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (3)

mail.j.pl

mail.cba.pl

mail2.cba.pl

Domain Information

cba.pl

Domain Age

21y 1m

Created

14.01.2005

Expires

15.03.2027

Last Updated

16.01.2026

Registrar

Abc Hosting Ltd.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Roboto

62/100

Readability

/30

32/40

14px · LH 1.79

Hierarchy

/20

15/25

1.1x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Roboto

Sans15px

Body Font

Roboto

Sans14px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

15px

35px

19px

14px

Perfect Fourth

Scale

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

✅ Optimal line spacing: 1.79 ratio ensures comfortable reading.

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

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

✅ Consistent design: Single font family with weight variations is a modern best practice.

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

Business & Marketing Stack

2 Tools Detected

Growing

Customer Support

Tawk.toFree

Live chat and helpdesk tools

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

15 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(5)embed.tawk.to(1)google-analytics.com(1)

Website Identity

Facebook

Sponsored

Last analyzed: 17 Feb 2026 at 02:18

Historical Analysis & Change Tracking