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

avira.com

https://avira.com· First analyzed 14 Feb 2026· Updated 14 Feb 2026

Export

avira.com

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

52.58.28.12

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS16509

Organization

AWS EC2 (eu-central-1)

Server

akamai

CDN

Akamai

WAF

Akamai

Nameservers

edns109.ultradns.org.edns109.ultradns.biz.edns109.ultradns.com.edns109.ultradns.net.

Performance

Page Speed

274 KB

75 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Bootstrap

CMS

Adobe Experience Manager

Infrastructure

Hosting

Amazon Web Services (AWS)

CDN

Akamai

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

12 Technologies Detected

CSS Frameworks

Analytics

Libraries

Other

Tag Managers

Reviews

CDN

Customer Support

Security

SEO Analysis

A82/100

avira.comavira.com

Download Security Software for Windows, Mac, Android & iOS | Avira ...

Discover a range of award-winning security, privacy & performance tools for all devices • Antivirus • VPN • System Speedup • Mobile & more. Download now

Title truncated.

Title Length76 chars

Recommended: 50-60 chars

Description Length152 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

12 URLs

robots.txt

53 rules

Sitemap reference found

Sponsored

Security Score

46%Poor

Interactive

HTTPS

WAF

220d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

22.09.2025

Valid Until

22.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (6)

avira.comantivirus.avira.comcampaigns.avira.comoem.avira.comsecure-vpn.avira.comwww.avira.com

SHA-256 Fingerprint

D3:21:7B:20:6F:9B:AD:D8:4F:00:F9:C1:EC:7F:65:A9:88:03:50:2D...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(private, no-cache)

content-encoding

📦 Gzip(gzip)

content-length

38957

content-security-policy

frame-ancestors 'self' *.avira.com *.avira.org *.avira.net *...

content-type

text/html; charset=UTF-8

date

Sat, 14 Feb 2026 00:01:48 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

avira-com.mail.protection.outlook.com

Domain Information

avira.com

Domain Age

24y 11m

Created

05.03.2001

Expires

10.10.2026

Last Updated

12.04.2023

Registrar

MarkMonitor Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Data Protection Officer mentioned

Typography & Readability

Helvetica + Helvetica Neue

68/100

Readability

/30

32/40

14px · LH 1.50

Hierarchy

/20

21/25

2.86x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

10/20

3 fonts

Heading Font

Helvetica

Sans40px

Body Font

Helvetica Neue

Sans14px

Contrast Ratio

Reading Comfort

~36 CPL

Needs attention

40px

20px

16px

13px

14px

⚠️ Small text: 14px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.9x larger than body text.

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

✅ Protected text on images: Using gradient for readability.

⚠️ Cramped layout: 31 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Reviews & Social Proof

TrustpilotMid-Market

Customer reviews and testimonials

Sponsored

Scripts & Styles

15 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(4)nexus.ensighten.com(2)googletagmanager.com(2)mhubc.avira.com(1)assets.adobedtm.com(1)

Website Identity

avira.com

24 years old

MarkMonitor Inc.📧 Microsoft 365

Social Profiles

Facebook

Sponsored

Last analyzed: 14 Feb 2026 at 00:02

Historical Analysis & Change Tracking