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

xmc.pl

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

Export

xmc.pl

Sponsored

Hosting Provider

InterServer

interserver.net

IP Address

66.45.232.109

Server Location

🇺🇸 Secaucus, United States

ASN

AS19318

Organization

Interserver, Inc

Server

LiteSpeed

Nameservers

dns2044b.trouble-free.net.dns2044a.trouble-free.net.

Performance

Page Speed

5.1 MB

187 requests

Image Optimization

Lazy LoadWebP

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.9.1

cms

twentytwentyoneCustom

Technology Stack

8 Technologies Detected

Plugins

Meta Frameworks

Other

CSS Frameworks

Fonts

Web Servers

SEO Analysis

A+94/100

xmc.plxmc.pl

X Management Center ✔️ International Internet Portal

Medium XMC.pl powstało po to, aby inspirować, bawić i edukować społeczność szerokiego internetu, zarażać ich pasją oraz dostarczać pozytywne produkty i usługi.

Title Length52 chars

Recommended: 50-60 chars

Description Length159 chars

Recommended: 120-160 chars

Issues (0)

1 issues found

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Crawlability

Sitemap

Type: standard

robots.txt

12 rules

Sponsored

Security Score

21%Critical

Interactive

HTTPS

No WAF

35d

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+H3

Valid From

24.12.2025

Valid Until

24.03.2026

Subject Alternative Names (6)

*.xmc.plwww.dev20.xmc.plwww.seo-sklep.xmc.plwww.sklep-seo.xmc.plwww.sklepseo.xmc.plxmc.pl

SHA-256 Fingerprint

60:CA:21:3C:B7:E0:A4:22:1C:0A:42:BB:58:49:B1:FA:00:09:1A:FD...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=2592000, h3-29=":443"; ma=2592000, h3-Q050=":4...

cache-control

🟡 2 Hours(public, max-age=7200)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Tue, 17 Feb 2026 00:52:22 GMT

expires

Tue, 17 Feb 2026 02:02:55 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (2)

xmc.pl

seosklep.xmc.pl

Domain Information

xmc.pl

Domain Age

19y 5m

Created

12.09.2006

Expires

12.09.2030

Last Updated

20.11.2023

Registrar

EPAG Domainservices GmbH

DNSSEC

Not Enabled

Typography & Readability

Verdana

56/100

Readability

/30

22/40

14px · LH --

Hierarchy

/20

16/25

1.71x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Verdana

Sans24px

Body Font

Verdana

Sans14px

Contrast Ratio

Reading Comfort

~41 CPL

Needs attention

24px

18px

14px

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

✅ Good hierarchy: Clear distinction between headlines and body text.

✅ 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.

⚠️ Cramped layout: 44 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

20 Resources

Scripts

Styles

Async

Defer

Top Script Sources

xmc.pl(6)partnerzyapi.ceneo.pl(1)translate.googleapis.com(1)challenges.cloudflare.com(1)cdn.gtranslate.net(1)

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Last analyzed: 17 Feb 2026 at 00:52

Historical Analysis & Change Tracking