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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kharkov.ua

https://kharkov.ua· First analyzed 13 Feb 2026· Updated 13 Feb 2026

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kharkov.ua

$Desktop screenshot of kharkov.ua$

$Mobile screenshot of kharkov.ua$

Mobile

Sponsored

Hosting Provider

Scientific Production Enterprise "Technaukservice" Ltd

IP Address

195.69.185.211

Server Location

🇺🇦 Kharkiv, Ukraine

ASN

AS21500

Organization

Scientific Production Enterprise "Technaukservice" Ltd

Server

Apache

Nameservers

ns.dn.ua.ns.kh.ua.ns.sm.ua.ns.zp.ua.+3 more

Performance

Page Speed

417 KB

53 requests

Image Optimization

Responsive

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

Scientific Production Enterprise "Technaukservice" Ltd

Detected API Sources

https://sinoptik.ua/api/inform...

Technology Stack

1 Technologies Detected

Web Servers

Apache

SEO Analysis

F32/100

kharkov.uakharkov.ua

Харьков - Харків

ДОБРО ПОЖАЛОВАТЬ В ХАРЬКОВ - город, где сосредоточен научный и производственный потенциал Восточной Украины. Здесь вы найдете полезную информацию о Харькове...

Description truncated.

Title Length16 chars

Recommended: 50-60 chars

Description Length338 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag - every page should have one H1
• Many images missing alt text (12/23)

8 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

11 rules

Sitemap reference found

Sponsored

Security Score

40%Critical

No SSL

No WAF

N/A

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate)

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-length

9865

content-type

text/html; charset=koi8-u

date

Fri, 13 Feb 2026 23:30:43 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

relay.kharkov.ua

kharkov.coordinator.ua

Domain Information

kharkov.ua

Domain Age

33y 2m

Created

02.12.1992

Last Updated

15.07.2024

Registrar

.UA Domain Administration

DNSSEC

Not Enabled

Typography & Readability

Source Sans Pro + arial

20/100

Readability

/30

5/40

11px · LH 1.18

Hierarchy

/20

8/25

WCAG

/25

5/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Source Sans Pro

Body Font

arial

Sans11px

Contrast Ratio

Reading Comfort

Mixed Pairing

left aligned

11px

❌ Critical: 11px body text is too small. Increase to at least 14px.

⚠️ Tight line spacing (1.18). Consider 1.4-1.6 for better readability.

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

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

⚠️ Inconsistent alignment: Mix of left/center/right creates visual noise.

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Scripts & Styles

7 Resources

Scripts

Styles

Async

Defer

Top Script Sources

date.js(1)sinoptik.ua(1)

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Last analyzed: 13 Feb 2026 at 23:30

Historical Analysis & Change Tracking