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

aol.de

https://aol.de· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

aol.de

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

76.223.84.192

Server Location

🇺🇸 Seattle, United States

ASN

AS16509

Organization

AWS Global Accelerator (GLOBAL)

Server

Apache Traffic Server

Nameservers

ns3.yahoo.com.ns2.yahoo.com.ns1.yahoo.com.ns5.yahoo.com.+1 more

Performance

Page Speed

453 KB

154 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Amazon Web Services (AWS)

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

3 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

CSS Frameworks

Tailwind CSS

SEO Analysis

C68/100

aol.deaol.de

AOL.de | Kostenlose Email, Nachrichten & Wetter, Finanzen , Sport u...

Kostenlose Email, Nachrichten & Wetter, Finanzen , Sport und Star-News auf AOL.de

Title truncated.

Title Length100 chars

Recommended: 50-60 chars

Description Length81 chars

Recommended: 120-160 chars

Issues (1)

• Missing H1 tag - every page should have one H1

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

1 URLs

robots.txt

103 rules

Sitemap reference found

Sponsored

Security Score

81%Very Good

Interactive

HTTPS

No WAF

15d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

02.12.2025

Valid Until

04.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (20)

glp.searchjam.comexternal.cap.yahoo.netexternal-staging.cap.yahoo.netqa-glp.searchjam.comstage-glp.searchjam.comprodramp-glp.searchjam.comtestvideo.advertising.yahoo.netdev-astra.commerce.aol.com+12 more

SHA-256 Fingerprint

81:14:4E:72:A1:98:43:D7:7D:35:1C:94:3B:EE:BC:1B:6F:11:BC:03...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

age

cache-control

🔴 No Cache(no-cache, no-store, private, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-security-policy

upgrade-insecure-requests; block-all-mixed-content; sandbox ...

content-type

text/html; charset=utf-8

date

Tue, 17 Feb 2026 17:18:09 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

mx-aol.mail.gm0.yahoodns.net

Domain Information

aol.de

Last Updated

27.02.2024

DNSSEC

Not Enabled

Privacy & Compliance

Didomi

Cookie Consent Banner

Didomi

GDPR Indicators

Cookie consent banner detected

CMP: Didomi

Data Protection Officer mentioned

Typography & Readability

Basis Grotesque Pro + Arial

76/100

Readability

/30

40/40

16px · LH 1.50

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Basis Grotesque Pro

Sans

Body Font

Arial

Sans16px

Contrast Ratio

Reading Comfort

~34 CPL

Needs attention

20px

19px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

✅ Protected text on images: Using gradient for readability.

⚠️ Cramped layout: 61 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Advertising

TaboolaMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

Quantcast ChoiceMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

s.yimg.com(10)s.aolcdn.com(4)ec.yimg.com(2)bam.nr-data.net(1)js-agent.newrelic.com(1)

Website Identity

aol.de

Sponsored

Last analyzed: 17 Feb 2026 at 17:18

Historical Analysis & Change Tracking