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

cihar.com

https://cihar.com· First analyzed 16 Feb 2026· Updated 16 Feb 2026

Export

cihar.com

Sponsored

Hosting Provider

Glow Internet s.r.o.

IP Address

77.78.107.252

Server Location

🇨🇿 Prague, Czechia

ASN

AS15685

Organization

Glow Internet s.r.o.

Server

Nginx

CDN

Cloudflare

WAF

Cloudflare

Nameservers

nicole.ns.cloudflare.com.coby.ns.cloudflare.com.

Performance

Page Speed

90 KB

17 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Glow Internet s.r.o.

CDN

Cloudflare

Technology Stack

4 Technologies Detected

Libraries

UI Components

Analytics

Web Servers

SEO Analysis

D56/100

cihar.comcihar.com

cihar.com - Michal Čihař

Michal Čihař's website

Title Length26 chars

Recommended: 50-60 chars

Description Length22 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

3 rules

Sitemap reference found

Sponsored

A+

Security Score

93%Excellent

Static / Informational

HTTPS

No WAF

50d

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

08.01.2026

Valid Until

08.04.2026

Subject Alternative Names (2)

cihar.comcs.cihar.com

SHA-256 Fingerprint

98:A9:86:E0:B6:89:C7:5B:AB:DD:4C:38:F5:4E:D0:17:6B:83:10:44...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

content-encoding

📦 Gzip(gzip)

content-length

5608

content-type

text/html; charset=utf-8

cross-origin-opener-policy

same-origin

date

Mon, 16 Feb 2026 12:57:08 GMT

referrer-policy

same-origin

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

mail.cihar.com

Domain Information

cihar.com

Domain Age

22y 5m

Created

09.09.2003

Expires

09.09.2026

Last Updated

10.08.2025

Registrar

Cloudflare, Inc.

DNSSEC

Not Enabled

Typography & Readability

Times New Roman

83/100

Readability

/30

30/40

16px · LH --

Hierarchy

/20

25/25

2x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Times New Roman

Serif32px

Body Font

Times New Roman

Serif16px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

32px

24px

19px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Strong hierarchy: Headlines are 2.0x larger than 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.

✅ Clean layout: Consistent left alignment throughout.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Matomo (Piwik)Mid-Market

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

7 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(3)stats.cihar.com(1)d37gvrvc0wt4s1.cloudfront.net(1)

Website Identity

X (Twitter)Mastodon

Sponsored

Last analyzed: 16 Feb 2026 at 12:57

Historical Analysis & Change Tracking