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.

Back to Search

interfax.ru

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

Export

interfax.ru

Mobile

Sponsored

Hosting Provider

Qrator

IP Address

178.248.233.231

Server Location

🇷🇺 Moscow, Russia

ASN

AS51115

Organization

Qrator

Server

QRATOR

Nameservers

ns1.interfax.ru.ns2.interfax.ru.

Performance

Page Speed

1.9 MB

77 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Qrator

Progressive Web App

PWA ReadyWeb ManifestService WorkerApple Touch IconTheme Color

Technology Stack

1 Technologies Detected

CSS Frameworks

Tailwind CSS

SEO Analysis

C64/100

interfax.ruinterfax.ru

Интерфакс: новости

Новости информационного агентства Интерфакс

Title Length18 chars

Recommended: 50-60 chars

Description Length43 chars

Recommended: 120-160 chars

Issues (0)

5 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

robots.txt

15 rules

Sitemap reference found

Sponsored

Security Score

56%Poor

Interactive

HTTPS

No WAF

288d

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

27.10.2025

Valid Until

28.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.interfax.ruinterfax.ru

SHA-256 Fingerprint

56:05:FD:D3:3E:40:0D:C6:EE:C0:E8:5D:A5:42:F8:85:6E:2E:6E:F2...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

server

QRATOR

date

Fri, 13 Feb 2026 04:59:55 GMT

content-type

text/html; charset=utf-8

content-security-policy

frame-ancestors 'self';

x-frame-options

SAMEORIGIN

referrer-policy

no-referrer-when-downgrade

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

back3.interfax.ru

back2.interfax.ru

Domain Information

interfax.ru

Domain Age

27y 1m

Created

25.12.1998

Expires

31.12.2026

Registrar

RU-CENTER-RU

DNSSEC

Not Enabled

Typography & Readability

helvetica neue

70/100

Readability

/30

22/40

15px · LH --

Hierarchy

/20

25/25

2x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

helvetica neue

Sans30px

Body Font

helvetica neue

Sans15px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

30px

19px

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

✅ Strong hierarchy: Headlines are 2.0x 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.

✅ Protected text on images: Using gradient for readability.

Buy on MyFonts

Sponsored

Scripts & Styles

13 Resources

Scripts

Styles

Async

Defer

Top Script Sources

mc.yandex.ru(2)local(2)yastatic.net(1)tns-counter.ru(1)top-fwz1.mail.ru(1)

Website Identity

Facebook X (Twitter)

Sponsored

Last analyzed: 13 Feb 2026 at 05:00

Historical Analysis & Change Tracking