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

aweber.com

https://aweber.com· First analyzed 13 Feb 2026· Updated 13 Feb 2026

Export

aweber.com

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

172.64.151.51

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

wanda.ns.cloudflare.com.josh.ns.cloudflare.com.

Performance

Page Speed

191 KB

106 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Technology Stack

16 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel FullStory Microsoft Clarity PostHog

Customer Support

Libraries

CSS Frameworks

Tag Managers

Email Marketing

Advertising

Microsoft Advertising

Other

VWO

Payments

Stripe

CDN

Cloudflare

SEO Analysis

A84/100

aweber.comaweber.com

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Title Length52 chars

Recommended: 50-60 chars

Description Length117 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

10 rules

Sitemap reference found

Sponsored

Security Score

0%Critical

Critical / Transactional

HTTPS

WAF

344d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

15.01.2026

Valid Until

23.01.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.aweber.comaweber.com

SHA-256 Fingerprint

DD:F9:66:B7:9F:55:95:05:5A:6A:71:1D:C7:83:30:A4:F0:53:DE:A4...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cf-cache-status

DYNAMIC

cf-ray🇩🇪 Frankfurt

9cd52b3e3bc1dcb5-FRA

content-encoding

⚡ Brotli(br)

content-security-policy-report-only

default-src https: data: blob: wss: android-webview-video-po...

content-type

text/html; charset=utf-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

mail1.aweber.com

Domain Information

aweber.com

Domain Age

27y 6m

Created

05.08.1998

Expires

08.06.2034

Last Updated

08.06.2024

Registrar

MarkMonitor Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Helvetica

85/100

Readability

/30

40/40

18px · LH 1.78

Hierarchy

/20

25/25

2.22x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Helvetica

Sans40px

Body Font

Helvetica

Sans18px

Contrast Ratio

Reading Comfort

~32 CPL

Needs attention

40px

30px

50px

40px

18px

Minor Second

Scale

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

✅ Optimal line spacing: 1.78 ratio ensures comfortable reading.

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

✅ Good performance: Using 2 font families keeps load times fast.

✅ Consistent design: Single font family with weight variations is a modern best practice.

✅ Protected text on images: Using gradient for readability.

Buy on MyFonts

Business & Marketing Stack

10 Tools Detected

Enterprise

Customer Support

LiveChatMid-Market

Live chat and helpdesk tools

Behavior Analytics

Microsoft ClarityFree

FullStoryEnterprise

Google Tag ManagerFree

Google AnalyticsFree

PostHogMid-Market

User behavior and product analytics

Feedback & Surveys

TypeformSMB

Survey and feedback collection tools

Advertising

Facebook PixelMid-Market

Microsoft AdsEnterprise

Ad platforms and retargeting pixels

A/B Testing & Optimization

VWO (Visual Website Optimizer)Mid-Market

Experimentation and conversion optimization

Sponsored

Scripts & Styles

25 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(6)connect.facebook.net(2)bat.bing.com(2)ph.aweber.com(2)scripts.clarity.ms(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn YouTube Pinterest

Sponsored

Last analyzed: 13 Feb 2026 at 14:56

Historical Analysis & Change Tracking