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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aon.at

https://aon.at· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

aon.at

Sponsored

Hosting Provider

EUNET

IP Address

193.81.82.81

Server Location

🇦🇹 Vienna, Austria

ASN

AS8447

Organization

EUNET

Server

CDN

Nameservers

dns2.a1.net.dns1.a1.net.dns3.a1.net.

Performance

Page Speed

19 KB

70 requests

Image Optimization

Lazy LoadWebPAVIFResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Bootstrap

Infrastructure

Hosting

EUNET

CDN

Technology Stack

6 Technologies Detected

Analytics

Libraries

CSS Frameworks

Icon Libraries

Tag Managers

SEO Analysis

B74/100

aon.ataon.at

Handy - Festnetz - Internet - Mobiles Internet - TV | A1.net

Alles aus einer Hand. Internet, TV, Mobil- & Festnetztelefonie, unbegrenztes Festnetz-Internet für zuhause und kostenloses WLAN-Modem.

Title Length60 chars

Recommended: 50-60 chars

Description Length134 chars

Recommended: 120-160 chars

Issues (0)

3 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

14 rules

Sitemap reference found

Sponsored

Security Score

56%Poor

Interactive

HTTPS

No WAF

346d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

08.01.2026

Valid Until

01.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.a1.neta1.net

SHA-256 Fingerprint

35:45:57:9B:B3:0A:A4:84:83:C4:7F:B6:42:A6:FD:CA:08:FF:C2:84...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

age

108

cache-control

🔴 No Cache(private, no-cache, no-store, must-revalidate, stale-while-re...)

content-encoding

📦 Gzip(gzip)

content-type

text/html;charset=UTF-8

date

Fri, 20 Feb 2026 08:21:50 GMT

expires

Thu, 01 Jan 1970 00:00:00 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

smx01.a1.net

Domain Information

aon.at

Registrar

A1 Telekom Austria AG ( https://nic.at/registrar/16 )

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Typography & Readability

A1Serif-Regular + A1Sans

72/100

Readability

/30

40/40

18px · LH 1.50

Hierarchy

/20

18/25

2.27x ratio

WCAG

/25

11/15

Contrast: undefined

Performance

/25

10/20

4 fonts

Heading Font

A1Serif-Regular

Serif40px

Body Font

A1Sans

Sans18px

Contrast Ratio

Reading Comfort

~38 CPL

Needs attention

40px

32px

22px

18px

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.3x larger than body text.

⚠️ Cramped layout: 66 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

cdn22.a1.net(17)sst.a1.net(2)cdn.cookielaw.org(1)

Website Identity

Facebook Instagram LinkedIn YouTube TikTok

Sponsored

Last analyzed: 20 Feb 2026 at 08:22

Historical Analysis & Change Tracking