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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av-comparatives.org

https://av-comparatives.org· First analyzed 23 Apr 2026· Updated 23 Apr 2026

Export

av-comparatives.org

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

172.67.68.127

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

lex.ns.cloudflare.com.nina.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

511 ms10%

Speed Index

664 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

279 KB

102 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv.

cms

AV-Comparativesv1.0Custom

by ITSEC-Labs

View Theme

Technology Stack

18 Technologies Detected

Plugins

Popup Maker Float Menu Sp Faq Ultimate Lightbox Translatepress Multilingual Pojo Accessibility

Libraries

Analytics

Matomo Microsoft Clarity

UI Components

CSS Frameworks

Icon Libraries

CDN

SEO Analysis

B75/100

Meta Tags4/15

Content11/12

Headings8/8

Technical25/25

E-E-A-T2/7

Images2/7

Links5/5

URL5/5

Social3/5

Freshness4/4

Mobile3/4

Indexability3/3

av-comparatives.orgav-comparatives.org

Home - AV-Comparatives

No description available for this page.

Title Length22 chars

Recommended: 50-60 chars (~139px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

• Missing meta description — important for click-through rates in SERPs

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

11 URLs

11 sub-sitemaps

robots.txt

6 rules

Local SEO

Local Search Readiness

26/100

Needs Work

7 11

Sponsored

AI & LLM Readiness

D54/100

Bot Access

20/25

Machine Read.

11/25

Schema Data

8/25

Citation

15/25

AI Bot Access

14/14 accessible

AI Search

OAI-SearchBot

PerplexityBot

Claude-SearchBot

Gemini-Deep-Research

DuckAssistBot

Training

GPTBot

ClaudeBot

Google-Extended

Meta-ExternalAgent

Bytespiderinfo

Amazonbot

Applebot-Extended

CCBotinfo

Fetch

ChatGPT-User

Machine Readability

llms.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

nav

Text ratio:5%

Words:847

Token eff.:Optimal

Sections/1K:7.1

Depth:1/5

Structured Data

4 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

sameAs entity links

Citation Readiness

Opening Summary46w

Descriptive Headingsavg 2.5w

Canonical URL

Open Graph1/3

Twitter Card1/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (8)

AI readiness recommendation preview...

Upgrade to view recommendations

Sponsored

Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.

73/100

Passed

Critical

Warnings

Images & Alt Text

10/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

17/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

10/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

15/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

11/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

10/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

3 recommendations

•Accessibility recommendation preview...

Upgrade to view recommendations

Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.

64/100

A+

28 mg

CO₂e / view

278.7 KB

Page Weight

90%

Cleaner Than

New Visitor

32 mg

Returning (cached)

16 mg

Annual (10K/mo)

3.4 kg

Emission Segments

Data Center

1 mg

Network

8 mg

Device

19 mg

Resource Breakdown

JavaScript

207.4 KB

Images

51.4 KB

HTML

19.9 KB

Green Hosting Verified

Cloudflare

GWF Verified

4 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

26%Critical

Interactive

HTTPS

WAF

37d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

02.03.2026

Valid Until

31.05.2026

Subject Alternative Names (2)

*.av-comparatives.orgav-comparatives.org

SHA-256 Fingerprint

91:DF:6B:5C:87:77:7C:68:0B:1A:45:B2:4D:EA:2A:8F:86:09:55:5F...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache)

cf-cache-status

DYNAMIC

cf-ray🇩🇪 Frankfurt

9f0f23951d95048f-FRA

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=UTF-8

date

Thu, 23 Apr 2026 19:05:19 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

avcomparatives-org0e.mail.protection.outlook.com

Domain Information

av-comparatives.org

Domain Age

22y 6m

Created

06.10.2003

Expires

06.10.2026

Last Updated

10.10.2025

Registrar

Mesh Digital Limited

DNSSEC

Not Enabled

Privacy & Compliance

CookieYes

Cookie Consent Banner

CookieYes

GDPR Indicators

Cookie consent banner detected

CMP: CookieYes

Data Protection Officer mentioned

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.

69/100

Mobile Friendly23 breakpoints

Viewport Meta

The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.

Responsive Design

Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.

Touch Icons

Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.

Readable Font Size

Base font size should be at least 16px on mobile to ensure text is readable without zooming.

Relative Units

Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.

No H-Scroll Risk

No elements wider than the viewport that would cause horizontal scrolling on mobile devices.

Tap Targets OK

Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.

No Fixed Widths

No elements with fixed pixel widths that could overflow on smaller screens and break the layout.

Viewport

width=device-width, initial-scale=1.0, user-scalable=no

3 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Roboto Condensed

WCAG Partial

61/100

Readability

/30

16/30

15px · LH --

Hierarchy

/20

13/20

4.27x ratio · ✓ H1→H6

WCAG

/25

16/25

1:1 min contrast

Performance

/25

16/25

1 font

Heading Font

Roboto Condensed

Sans64px

Body Font

Roboto Condensed

Sans15px

Contrast Ratio

1:1

9 issues

Reading Comfort

~35 CPL

Narrow lines

64px

48px

32px

24px

15px

⚠️ Small text: 15px may strain on mobile. Use ≥16px for WCAG compliance.

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 1.0:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 4.3x larger than body text.

⚠️ Text justify detected: Justified text creates uneven word spacing, hurting readability on web.

Buy on MyFontsFlesch 0

Color Palette

14 unique colors

Dark

#554e52

Text· 7.3%

#030102

Primary· 12.899999999999999%

#061f43

Primary· 9.7%

#fffffe

Accent· 8.3%

#2f3c4d

Secondary· 7.8%

#050d24

Accent· 7.7%

#ac8772

Secondary· 7.3%

#170d10

Secondary· 6.5%

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Microsoft ClarityFree

Matomo (Piwik)Mid-Market

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

CookieYesSMB

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

av-comparatives.org(12)cdn-cookieyes.com(2)scripts.clarity.ms(1)piwik.av-comparatives.org(1)nht-2.extreme-dm.com(1)

Website Identity

AV-Comparatives

Organization

Independent Tests of Anti-Virus Software

www.av-comparatives.org/

22 years old

Location detected: 🇨🇦 Canadavia ip

Mesh Digital Limited📧 Microsoft 365en-USEst. 2004

Social Profiles

Facebook X (Twitter)LinkedIn YouTube

Sponsored

Last analyzed: 23 Apr 2026 at 19:05

Historical Analysis & Change Tracking