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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odnoklassniki.ru

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

Export

odnoklassniki.ru

Mobile

Sponsored

Hosting Provider

Odnoklassniki Services

IP Address

217.20.147.1

Server Location

🇷🇺 Moscow, Russia

ASN

AS47764

Organization

Odnoklassniki Services

Server

kittenx

Nameservers

ns2.ok.ru.ns3.ok.ru.ns1.ok.ru.

Performance

Page Speed

4.6 MB

270 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Odnoklassniki Services

Progressive Web App

Service WorkerApple Touch Icon

Technology Stack

11 Technologies Detected

Analytics

Frameworks

CSS Frameworks

Libraries

Other

Tag Managers

Customer Support

SEO Analysis

D49/100

odnoklassniki.ruodnoklassniki.ru

OK social network. Communication with friends on OK. Your meeting p...

OK is a social network where you can find your old friends. Communication, online games, send gifts and cards to friends. Come to OK, and share your emotions...

Title truncated. Description truncated.

Title Length87 chars

Recommended: 50-60 chars

Description Length198 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag - every page should have one H1
• Many images missing alt text (17/18)

5 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

237 rules

Sitemap reference found

Sponsored

Security Score

55%Poor

Critical / Transactional

HTTPS

No WAF

268d

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

10.10.2025

Valid Until

09.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (20)

*.ok.ruodnoklassniki.ruok.meokl.ltoklive.apptamtam.chattt.mem.odnoklasniki.ru+12 more

SHA-256 Fingerprint

41:F7:4F:66:29:C5:EE:76:1D:15:1F:E7:AC:81:F1:29:CF:F8:1B:DD...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache, no-store)

content-encoding

⚡ Brotli(br)

content-security-policy

default-src data: 'self' 'unsafe-inline' 'unsafe-eval' ok.ru...

content-security-policy-report-only

default-src data: blob: about: 'self' 'unsafe-inline' 'unsaf...

content-type

text/html;charset=UTF-8

date

Fri, 13 Feb 2026 19:20:42 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

mxs.mail.ru

Domain Information

odnoklassniki.ru

Domain Age

24y 1m

Created

14.01.2002

Expires

14.01.2027

Registrar

RU-CENTER-RU

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

Data Protection Officer mentioned

Typography & Readability

Onest + Arial

44/100

Readability

/30

10/40

12px · LH --

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Onest

Body Font

Arial

Sans12px

Contrast Ratio

Reading Comfort

Mixed Pairing

left aligned

12px

❌ Critical: 12px body text is too small. Increase to at least 14px.

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

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

st-ok.cdn-vk.ru(14)googletagmanager.com(2)google-analytics.com(1)top-fwz1.mail.ru(1)mc.yandex.ru(1)

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Last analyzed: 13 Feb 2026 at 19:21

Historical Analysis & Change Tracking