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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hh.ru

https://hh.ru· First analyzed 14 Feb 2026· Updated 14 Feb 2026

Export

hh.ru

Mobile

Sponsored

Hosting Provider

LLC HeadHunter - Online Hiring Services

IP Address

94.124.200.0

Server Location

🇷🇺 Moscow, Russia

ASN

AS47724

Organization

LLC HeadHunter - Online Hiring Services

Server

ddos-guard

Nameservers

ns8-cloud.nic.ru.ns.hh.ru.ns4-cloud.nic.ru.ns4-l2.nic.ru.+1 more

Performance

Page Speed

130 KB

73 requests

Image Optimization

WebP

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

LLC HeadHunter - Online Hiring Services

Progressive Web App

Service WorkerApple Touch Icon

Detected API Sources

https://cpa.hh.ru/api/tracker/...

Technology Stack

3 Technologies Detected

CSS Frameworks

Tailwind CSS

Ant Design

Meta Frameworks

Astro

SEO Analysis

D58/100

hh.ruhh.ru

Работа в Москве, поиск персонала и публикация вакансий - hh.ru

hh.ru — сервис, который помогает найти работу и подобрать персонал в Москве более 20 лет! Создавайте резюме и откликайтесь на вакансии. Набирайте сотрудников...

Description truncated.

Title Length62 chars

Recommended: 50-60 chars

Description Length180 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

5 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

55 URLs

robots.txt

91 rules

Sitemap reference found

Sponsored

Security Score

56%Poor

Interactive

HTTPS

No WAF

50d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

04.03.2025

Valid Until

05.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.hh.ruhh.ru

SHA-256 Fingerprint

BD:B0:48:E0:6A:B5:5C:7B:43:A3:D0:72:31:27:79:48:6D:28:9A:6F...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache, no-store)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Sat, 14 Feb 2026 00:22:37 GMT

nel

{"success_fraction":0,"report_to":"nel","max_age":3600}

report-to

{"group":"nel","endpoints":[{"url":"https:\/\/nel.hhdev.ru\/...

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

mx3.hh.ru

mx6.hh.ru

Domain Information

hh.ru

Domain Age

25y 11m

Created

15.03.2000

Expires

31.03.2026

Registrar

RU-CENTER-RU

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

Data Protection Officer mentioned

Typography & Readability

hh sans

63/100

Readability

/30

32/40

14px · LH 1.43

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

hh sans

Sans

Body Font

hh sans

Sans14px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

22px

18px

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

✅ Optimal line spacing: 1.43 ratio ensures comfortable reading.

✅ Good performance: Using 1 font families keeps load times fast.

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

⚠️ Cramped layout: 17 elements lack adequate spacing.

✅ Clean layout: Consistent left alignment throughout.

Buy on MyFonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

28 Resources

Scripts

Styles

Async

Defer

Top Script Sources

i.hh.ru(16)telegram.org(1)mc.yandex.ru(1)top-fwz1.mail.ru(1)cpa.hh.ru(1)

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Last analyzed: 14 Feb 2026 at 00:22

Historical Analysis & Change Tracking