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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activehosted.com

https://activehosted.com· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

activehosted.com

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.17.204.31

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

love.ns.cloudflare.com.kellen.ns.cloudflare.com.

Performance

Page Speed

313 KB

68 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Tailwind CSS

CMS

WordPress

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Technology Stack

8 Technologies Detected

Analytics

CSS Frameworks

Tag Managers

Email Marketing

Customer Support

CDN

SEO Analysis

B76/100

activehosted.comactivehosted.com

Marketing automation for any business | ActiveCampaign

Go beyond marketing automation with ActiveCampaign's autonomous marketing platform. Your team of AI agents handles email, SMS, WhatsApp and more for you, bac...

Description truncated.

Title Length54 chars

Recommended: 50-60 chars

Description Length188 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (45/57)

2 issues found

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Sponsored

Security Score

51%Poor

Interactive

HTTPS

WAF

251d

Certificate Details

Type

Extended Validation (EV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

25.09.2025

Valid Until

26.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.activecampaign.comactivecampaign.com

SHA-256 Fingerprint

D8:B5:76:93:81:E9:43:E1:36:FE:85:A2:ED:95:3B:02:50:68:53:7F...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

date

Tue, 17 Feb 2026 01:51:00 GMT

content-type

text/html; charset=UTF-8

content-encoding

⚡ Brotli(br)

cf-ray🇩🇪 Frankfurt

9cf1a31849a73663-FRA

cf-cache-status

DYNAMIC

age

356

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

parse.mail.ac0.us

Domain Information

activehosted.com

Domain Age

21y 5m

Created

01.09.2004

Expires

01.09.2026

Last Updated

31.07.2025

Registrar

MarkMonitor Inc.

DNSSEC

Not Enabled

Privacy & Compliance

OneTrust

Cookie Consent Banner

OneTrust

GDPR Indicators

Cookie consent banner detected

CMP: OneTrust

Data Protection Officer mentioned

Typography & Readability

ui-sans-serif

71/100

Readability

/30

40/40

18px · LH 1.40

Hierarchy

/20

8/25

0.89x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

ui-sans-serif

Sans16px

Body Font

ui-sans-serif

Sans18px

Contrast Ratio

Reading Comfort

~74 CPL

Optimal (45–75)

16px

54px

13px

14px

18px

Golden Ratio

Scale

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

✅ Optimal line spacing: 1.40 ratio ensures comfortable reading.

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

✅ 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

7 Tools Detected

Enterprise

Customer Support

ZendeskEnterprise

IntercomMid-Market

LiveChatMid-Market

Live chat and helpdesk tools

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

HotjarMid-Market

User behavior and product analytics

Privacy & Cookies

OneTrustEnterprise

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

21 Resources

Scripts

Styles

Async

Defer

Top Script Sources

assets.adobedtm.com(3)activecampaign.com(3)googletagmanager.com(2)cdn.cookielaw.org(2)try.activecampaign.com(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn

Sponsored

Last analyzed: 17 Feb 2026 at 01:51

Historical Analysis & Change Tracking