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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regnum.ru

https://regnum.ru· First analyzed 15 Feb 2026· Updated 15 Feb 2026

Export

regnum.ru

Mobile

Sponsored

Hosting Provider

G-Core Rus LLC

IP Address

95.181.181.56

Server Location

🇷🇺 Moscow, Russia

ASN

AS210756

Organization

G-Core Rus LLC

Server

Nginx

Nameservers

ns4-cloud.nic.ru.ns8-cloud.nic.ru.ns3-l2.nic.ru.ns4-l2.nic.ru.+1 more

Performance

Page Speed

30 KB

1 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

G-Core Rus LLC

Technology Stack

2 Technologies Detected

CSS Frameworks

Tailwind CSS

Web Servers

Nginx

SEO Analysis

F17/100

regnum.ruregnum.ru

Browser check...

No description available for this page.

Title Length16 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description - important for click-through rates
• Missing H1 tag - every page should have one H1

7 issues found

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Security Score

71%Good

Static / Informational

HTTPS

No WAF

338d

Certificate Details

Type

Domain Validated (DV)

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

18.12.2025

Valid Until

19.01.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.regnum.ruregnum.ru

SHA-256 Fingerprint

BA:5B:47:C6:85:76:98:5A:56:70:A5:86:BD:19:FD:DD:2C:D5:55:CB...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache)

content-length

3816

content-type

text/html

date

Sun, 15 Feb 2026 05:15:51 GMT

expires

Thu, 01 Jan 1970 00:00:01 GMT

server

nginx

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

mail.regnum.su

mail1.regnum.su

Domain Information

regnum.ru

Domain Age

23y 11m

Created

28.02.2002

Expires

28.02.2027

Registrar

RD-RU

DNSSEC

Not Enabled

Typography & Readability

Arial

73/100

Readability

/30

30/40

16px · LH --

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Arial

Body Font

Arial

Sans16px

Contrast Ratio

Reading Comfort

~37 CPL

Needs attention

16px

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

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

✅ Clean layout: Consistent center alignment throughout.

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Scripts & Styles

1 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(1)

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Last analyzed: 15 Feb 2026 at 05:15

Historical Analysis & Change Tracking