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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asterisk.org

https://asterisk.org· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

asterisk.org

Sponsored

Hosting Provider

Kinsta

cloudflare.com

IP Address

162.159.135.42

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns2.digitalocean.com.ns1.digitalocean.com.ns3.digitalocean.com.

Performance

Page Speed

1.1 MB

100 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.8.3

cms

hello-elementorCustom

Technology Stack

17 Technologies Detected

Plugins

Wp Views

Elementor

Ultimate Elementor

Highlighting Code Block Page Links To

Libraries

Analytics

Other

CSS Frameworks

Icon Libraries

Tag Managers

CDN

SEO Analysis

A82/100

asterisk.orgasterisk.org

Home ⋆ Asterisk

Ready to Get Started with Asterisk? Asterisk is a free and open source framework for building communications applications and is sponsored by Sangoma.

Title Length15 chars

Recommended: 50-60 chars

Description Length150 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Sponsored

Security Score

36%Critical

Interactive

HTTPS

WAF

79d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

09.02.2026

Valid Until

10.05.2026

Subject Alternative Names (1)

www.asterisk.org

SHA-256 Fingerprint

BB:A6:C3:6D:CC:AC:F4:E0:D0:CF:9F:36:83:E0:B2:03:68:F3:2E:CE...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

date

Fri, 20 Feb 2026 03:54:40 GMT

content-type

text/html; charset=UTF-8

server

cloudflare

cf-ray🇩🇪 Frankfurt

9d0b105eba84c46f-FRA

cf-cache-status

DYNAMIC

cache-control

🟡 0s(public, max-age=0, s-maxage=3600)

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mail.digium.com

Domain Information

asterisk.org

Domain Age

26y 11m

Created

11.03.1999

Expires

11.03.2027

Last Updated

09.02.2026

Registrar

Amazon Registrar, Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

Karla + sans-serif

73/100

Readability

/30

40/40

18px · LH 1.50

Hierarchy

/20

25/25

3.33x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Karla

Sans60px

Body Font

sans-serif

Sans18px

Contrast Ratio

Reading Comfort

~59 CPL

Optimal (45–75)

60px

32px

20px

24px

18px

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.3x larger than body text.

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

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

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

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

asterisk.org(12)googletagmanager.com(5)cdn.sitesearch360.com(2)google-analytics.com(1)

Website Identity

Facebook X (Twitter)YouTube GitHub

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Last analyzed: 20 Feb 2026 at 03:54

Historical Analysis & Change Tracking