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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aeroflot.ru

https://aeroflot.ru· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

aeroflot.ru

Sponsored

Hosting Provider

OOO CCT

IP Address

212.193.146.183

Server Location

🇷🇺 Moscow, Russia

ASN

AS34879

Organization

OOO CCT

Server

Nginx

Nameservers

ns1.ngenix-dns.ru.ns2.ngenix-dns.ru.

Performance

Page Speed

12 MB

101 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Hybrid

🔀 Hybrid

Frontend

Framework

Next.js

Infrastructure

Hosting

OOO CCT

CDN

Vercel Image

Technology Stack

5 Technologies Detected

Meta Frameworks

Next.jsv2026.02.16 Astro

CSS Frameworks

Tailwind CSS

Ant Design

Web Servers

Nginx

SEO Analysis

C64/100

aeroflot.ruaeroflot.ru

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Description truncated.

Title Length57 chars

Recommended: 50-60 chars

Description Length205 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

546 rules

Sitemap reference found

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Security Score

71%Good

Static / Informational

HTTPS

No WAF

227d

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

01.09.2025

Valid Until

03.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.aeroflot.ruaeroflot.ru

SHA-256 Fingerprint

F4:3A:31:70:91:16:79:4B:67:49:42:26:84:62:DD:97:A3:A0:47:E1...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-credentials

true

access-control-allow-headers

Accept, Access-Control-Allow-Credentials, Authorization, Cli...

content-length

34355

content-type

text/html; charset=utf-8

date

Tue, 17 Feb 2026 14:19:35 GMT

server

nginx

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mx2.cs.aeroflot.ru

mx1.cs.aeroflot.ru

Domain Information

aeroflot.ru

Domain Age

28y 4m

Created

20.10.1997

Expires

31.10.2026

Registrar

RU-CENTER-RU

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

Typography & Readability

Golos Text

60/100

Readability

/30

32/40

15px · LH 1.47

Hierarchy

/20

25/25

2.13x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Golos Text

Sans32px

Body Font

Golos Text

Sans15px

Contrast Ratio

Reading Comfort

~50 CPL

Optimal (45–75)

32px

20px

15px

⚠️ Small text: 15px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.47 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.1x 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

21 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(10)top-fwz1.mail.ru(2)abt.s3.yandex.net(1)static-ctm.aeroflot.ru(1)mc.yandex.ru(1)

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Last analyzed: 17 Feb 2026 at 14:19

Historical Analysis & Change Tracking