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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bizzabo.com

https://bizzabo.com· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

bizzabo.com

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.18.23.52

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

athena.ns.cloudflare.com.roan.ns.cloudflare.com.

Performance

Page Speed

819 KB

41 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

oxygen-is-not-a-themeCustom

Technology Stack

23 Technologies Detected

Plugins

Bt Bb Ab Embedpress Customfunctions Simple Ab Tester

Analytics

Other

GSAP AOS (Animate On Scroll)

Libraries

UI Components

Other

CSS Frameworks

Icon Libraries

Tag Managers

Marketing

Payments

CDN

Customer Support

SEO Analysis

A+100/100

bizzabo.combizzabo.com

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Title Length58 chars

Recommended: 50-60 chars

Description Length142 chars

Recommended: 120-160 chars

Sponsored

Security Score

45%Poor

Critical / Transactional

HTTPS

WAF

63d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

24.01.2026

Valid Until

24.04.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

bizzabo.com*.bizzabo.com

SHA-256 Fingerprint

F8:F7:57:80:EE:7E:EE:30:EA:6E:C1:F1:E2:AA:62:6F:17:D7:3F:26...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=86400

cache-control

🟡 1 Hours(public, max-age=3600, s-maxage=3600)

cf-apo-via

origin,page-rules

cf-cache-status

BYPASS

cf-ray🇩🇪 Frankfurt

9d08868b3ed9d38c-FRA

content-encoding

📦 Gzip(gzip)

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

aspmx3.googlemail.com

aspmx.l.google.com

aspmx2.googlemail.com

alt2.aspmx.l.google.com

+1 more

Domain Information

bizzabo.com

Domain Age

15y 4m

Created

10.10.2010

Expires

10.10.2026

Last Updated

11.10.2025

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Legitimate interest basis mentioned

Typography & Readability

GalaxieCopernicus + sans-serif

52/100

Readability

/30

32/40

15px · LH 1.60

Hierarchy

/20

18/25

3.47x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

17/20

System fonts

Heading Font

GalaxieCopernicus

Sans52px

Body Font

sans-serif

Sans15px

Contrast Ratio

Reading Comfort

~31 CPL

Needs attention

52px

26px

22px

15px

⚠️ Small text: 15px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.60 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.5x larger than body text.

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

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

⚠️ Risky: Text appears on background images without overlay protection.

Buy on MyFonts

Business & Marketing Stack

6 Tools Detected

Enterprise

CRM Systems

HubSpotMid-Market

Customer Relationship Management platforms

Behavior Analytics

Google Tag ManagerFree

ContentsquareEnterprise

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

CookiebotMid-Market

GDPR Cookie ConsentFree

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

20 Resources

Scripts

Styles

Async

Defer

Top Script Sources

bizzabo.com(12)consent.cookiebot.com(2)consentcdn.cookiebot.com(1)opps-widget.getwarmly.com(1)t.contentsquare.net(1)

Website Identity

bizzabo.com

15 years old

GoDaddy.com, LLC📧 Google Workspace

Social Profiles

Facebook X (Twitter)Instagram LinkedIn GitHub

Sponsored

Last analyzed: 19 Feb 2026 at 20:31

Historical Analysis & Change Tracking