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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kaspersky.com

https://kaspersky.com· First analyzed 11 Feb 2026· Updated 11 Feb 2026

Export

kaspersky.com

Mobile

Sponsored

Hosting Provider

Kaspersky Lab Switzerland GmbH

IP Address

77.74.178.24

Server Location

🇷🇺 Moscow, Russia

ASN

AS200107

Organization

Kaspersky Lab Switzerland GmbH

Server

Angie

CDN

Proxy Cache

Nameservers

ns1.kasperskylabs.net.ns2.kasperskylabs.com.ns3.kasperskylabs.org.

Performance

Page Speed

1.6 MB

170 requests

0–49

50–89

90–100

Architecture Stack

Hybrid

⚙️ SSR

Frontend

Framework

Next.js

Infrastructure

Hosting

Kaspersky Lab Switzerland GmbH

CDN

Proxy Cache

Technology Stack

14 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Microsoft Clarity FullStory

Advertising

Google Ads LinkedIn Ads Microsoft Advertising Criteo Taboola

CSS Frameworks

Meta Frameworks

Tag Managers

SEO Analysis

D52/100

kaspersky.comkaspersky.com

Kaspersky Cyber Security Solutions for Home and Business | Kaspersky

Official Site – A Global Leader in next-generation cybersecurity solutions and services, Kaspersky offers premium protection against all cyber threats for yo...

Description truncated.

Title Length68 chars

Recommended: 50-60 chars

Description Length178 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (23/24)

6 issues found

Upgrade to view details

Sponsored

Security Score

81%Very Good

Interactive

HTTPS

No WAF

12d

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟡 600s(max-age=600)

content-encoding

📦 Gzip(gzip)

content-security-policy

frame-ancestors 'self' https://shop.kaspersky.co.uk https://...

content-type

text/html; charset=utf-8

date

Wed, 11 Feb 2026 03:30:54 GMT

etag

"rwx32lxjivc9nk"

Good Warning Issue

Typography & Readability

KasperskySansDisplay

51/100

Readability

/30

32/40

18px · LH 1.22

Hierarchy

/20

18/25

2.22x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

KasperskySansDisplay

Sans40px

Body Font

KasperskySansDisplay

Sans18px

Contrast Ratio

Reading Comfort

~40 CPL

Needs attention

40px

21px

18px

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Strong hierarchy: Headlines are 2.2x larger than body text.

✅ Good performance: Using 1 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.

⚠️ Risky: Text appears on background images without overlay protection.

Buy on MyFonts

Business & Marketing Stack

11 Tools Detected

Enterprise

Behavior Analytics

Microsoft ClarityFree

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

LinkedIn AdsEnterprise

Microsoft AdsEnterprise

TaboolaMid-Market

Reddit PixelMid-Market

CriteoEnterprise

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Social widgets and sharing tools

A/B Testing & Optimization

KameleoonEnterprise

Experimentation and conversion optimization

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(6)connect.facebook.net(2)sgtm.kaspersky.de(2)scripts.clarity.ms(1)clarity.ms(1)

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Last analyzed: 11 Feb 2026 at 03:31

Historical Analysis & Change Tracking