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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labirint.ru

https://labirint.ru· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

labirint.ru

Sponsored

Hosting Provider

ROSPRINT

IP Address

194.84.83.151

Server Location

🇷🇺 Moscow, Russia

ASN

AS2854

Server

Nginx

Nameservers

ns1.labirint.ru.ns4-l2.nic.ru.ns8-l2.nic.ru.

Performance

Page Speed

108 KB

137 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

ROSPRINT

Progressive Web App

Web ManifestApple Touch IconTheme Color

Detected API Sources

//vk.com/js/api/openapi.js

Technology Stack

8 Technologies Detected

Libraries

UI Components

CSS Frameworks

Analytics

Tag Managers

Web Servers

Customer Support

Security

SEO Analysis

B72/100

labirint.rulabirint.ru

Лабиринт | Книжный интернет-магазин: купить книги, новинки, бестсел...

Книжный интернет-магазин Лабиринт – онлайн-гипермаркет, где можно купить книги 📙 и учебную литературу по низким ценам 🔝 (новинки и бестселлеры, более 200 0...

Title truncated. Description truncated.

Title Length71 chars

Recommended: 50-60 chars

Description Length306 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

42 URLs

robots.txt

166 rules

Sitemap reference found

Sponsored

Security Score

21%Critical

Interactive

HTTPS

No WAF

220d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

26.08.2025

Valid Until

27.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.labirint.rulabirint.ru

SHA-256 Fingerprint

3E:7C:A5:B1:CE:09:32:A7:10:AC:77:61:1D:AF:92:49:F4:2A:ED:5C...

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

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Thu, 19 Feb 2026 11:24:17 GMT

expires

Thu, 19 Feb 2026 11:24:16 GMT

pragma

no-cache

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (2)

mail.labirint.ru

mail4.labirint.ru

Domain Information

labirint.ru

Domain Age

29y 4m

Created

20.10.1996

Expires

31.10.2026

Registrar

RD-RU

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

Typography & Readability

Helvetica + root-ui-regular

65/100

Readability

/30

32/40

16px · LH 1.38

Hierarchy

/20

13/25

1.5x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

10/20

3 fonts

Heading Font

Helvetica

Sans24px

Body Font

root-ui-regular

Sans16px

Contrast Ratio

Reading Comfort

~46 CPL

Optimal (45–75)

24px

16px

Minor Second

Scale

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

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

✅ Protected text on images: Using gradient for readability.

✅ Optimal line length: ~46 characters per line is comfortable to read.

⚠️ Cramped layout: 28 elements lack adequate spacing.

✅ Clean layout: Consistent left alignment throughout.

Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

js2.labirint.ru(16)googletagmanager.com(2)apis.google.com(1)mc.yandex.ru(1)

Website Identity

YouTube Telegram

Sponsored

Last analyzed: 19 Feb 2026 at 11:24

Historical Analysis & Change Tracking