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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metrika.yandex.ru

https://metrika.yandex.ru· First analyzed 13 Feb 2026· Updated 13 Feb 2026

Export

metrika.yandex.ru

Mobile

Sponsored

Hosting Provider

Yandex LLC

IP Address

87.250.251.77

Server Location

🇷🇺 Moscow, Russia

ASN

AS13238

Organization

Yandex LLC

Nameservers

ns3.yandex.ru.ns4.yandex.ru.

Performance

Page Speed

1.3 MB

98 requests

Image Optimization

Lazy LoadResponsiveVercel Image Optimization

0–49

50–89

90–100

Architecture Stack

Hybrid

⚙️ SSR

Frontend

Framework

Next.js

Infrastructure

Hosting

Yandex LLC

CDN

Vercel Image

Technology Stack

4 Technologies Detected

Frameworks

Meta Frameworks

CSS Frameworks

Customer Support

SEO Analysis

A82/100

metrika.yandex.rumetrika.yandex.ru

Яндекс Метрика: всё о бесплатной системе аналитики

Яндекс Метрика — универсальная система веб-аналитики. Поможет лучше узнать своих пользователей, изучить их поведение на сайте и оценить эффективность каналов...

Description truncated.

Title Length50 chars

Recommended: 50-60 chars

Description Length170 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

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Crawlability

Sitemap

Type: standard

robots.txt

1195 rules

Sitemap reference found

Sponsored

Security Score

71%Good

Interactive

HTTPS

No WAF

174d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

GlobalSign nv-sa

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

06.02.2026

Valid Until

06.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (20)

*.yandex.trxn--d1acpjx3f.xn--p1ai*.xn--d1acpjx3f.xn--p1aiyandex.aero*.yandex.aeroyandex.jobs*.yandex.jobsyandex.net+12 more

SHA-256 Fingerprint

00:4B:73:AB:C7:08:25:68:A0:71:82:92:46:23:A2:69:73:FB:7F:4A...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ch

Sec-CH-UA-Platform-Version, Sec-CH-UA-Mobile, Sec-CH-UA-Mode...

cache-control

🔴 No Cache(private, no-cache, no-store, max-age=0, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-security-policy

script-src 'self' 'nonce-FgFcgW+ATWGfsps3k8RHAFh8' yastatic....

content-type

text/html; charset=utf-8

date

Fri, 13 Feb 2026 08:16:46 GMT

Good Warning Issue

Email Infrastructure

Yandex Mail

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mx.yandex.ru

Domain Information

metrika.yandex.ru

Domain Age

28y 4m

Created

23.09.1997

Expires

30.09.2026

Registrar

RU-CENTER-RU

DNSSEC

Not Enabled

Typography & Readability

Helvetica Neue

68/100

Readability

/30

40/40

18px · LH 1.56

Hierarchy

/20

25/25

4.33x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Helvetica Neue

Sans78px

Body Font

Helvetica Neue

Sans18px

Contrast Ratio

Reading Comfort

~43 CPL

Needs attention

78px

54px

18px

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.56 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 4.3x larger than body text.

✅ Good performance: Using 2 font families keeps load times fast.

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

✅ Smart font loading: Using font-display: swap prevents invisible text during load.

Buy on MyFonts

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

12 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(10)

Website Identity

X (Twitter)YouTube Telegram

Sponsored

Last analyzed: 13 Feb 2026 at 08:17

Historical Analysis & Change Tracking