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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msu.ru

https://msu.ru· First analyzed 12 Feb 2026· Updated 12 Feb 2026

Export

msu.ru

$Desktop screenshot of msu.ru$

$Mobile screenshot of msu.ru$

Mobile

Sponsored

Hosting Provider

Yandex LLC

IP Address

84.201.185.178

Server Location

🇷🇺 Moscow, Russia

ASN

AS200350

Organization

Yandex LLC

Server

Nginx

Nameservers

ns.msu.ru.ns3.nic.fr.ns.msu.net.

Performance

Page Speed

18.8 MB

118 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Yandex LLC

Technology Stack

5 Technologies Detected

Frameworks

Meta Frameworks

CSS Frameworks

Web Servers

Libraries

SEO Analysis

D52/100

msu.rumsu.ru

МГУ имени М.В. Ломоносова

Московский государственный университет имени М.В. Ломоносова — один из старейших и крупнейших классических университетов России

Title Length25 chars

Recommended: 50-60 chars

Description Length128 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

6 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

16 rules

Sponsored

Security Score

41%Poor

Interactive

HTTPS

No WAF

54d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

08.01.2026

Valid Until

08.04.2026

Subject Alternative Names (2)

msu.ruwww.msu.ru

SHA-256 Fingerprint

6D:5F:25:6F:0E:FC:1F:3C:97:37:CB:B8:2B:CC:4E:1A:AE:DC:B8:17...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin

content-encoding

📦 Gzip(gzip)

content-type

text/html

date

Thu, 12 Feb 2026 20:49:24 GMT

etag

W/"rd5kg5"

link

<./_app/immutable/assets/0.22576152.css>; rel="preload";as="...

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (3)

nss.msu.ru

post.msu.ru

mx.msu.ru

Domain Information

msu.ru

Domain Age

29y 2m

Created

01.12.1996

Expires

31.12.2026

Registrar

RU-CENTER-RU

DNSSEC

Not Enabled

Typography & Readability

MoscowUniversity + IBMPlexSans

51/100

Readability

/30

20/40

12px · LH 1.50

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

MoscowUniversity

Sans

Body Font

IBMPlexSans

Sans12px

Contrast Ratio

Reading Comfort

~42 CPL

Needs attention

36px

22px

12px

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

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

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

⚠️ Cramped layout: 22 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

10 Resources

Scripts

Styles

Async

Defer

Top Script Sources

Website Identity

YouTube Telegram

Sponsored

Last analyzed: 12 Feb 2026 at 20:50

Historical Analysis & Change Tracking