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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m5stack.com

https://m5stack.com· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

m5stack.com

Sponsored

Hosting Provider

Microsoft Azure

azure.microsoft.com

IP Address

13.76.210.48

Server Location

🇸🇬 Singapore, Singapore

ASN

AS8075

Organization

Microsoft Azure Cloud (southeastasia)

Server

Nginx

Nameservers

vip3.alidns.com.vip4.alidns.com.

Performance

Page Speed

2.4 MB

92 requests

Image Optimization

WebP

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Shopify

ecommerce

Shopify Theme

Detected Apps

Instagram Shopping

Technology Stack

7 Technologies Detected

Analytics

Libraries

UI Components

CSS Frameworks

Web Servers

Frameworks

SEO Analysis

C61/100

m5stack.comm5stack.com

The Innovator of Modular IoT Development Platform | M5Stack

M5Stack provides global developers and SME with modular hardware, graphic programming platform and IoT solutions.

Title Length59 chars

Recommended: 50-60 chars

Description Length113 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag - every page should have one H1
• Many images missing alt text (73/74)

3 issues found

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Security Score

21%Critical

Interactive

HTTPS

No WAF

13d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

03.03.2025

Valid Until

02.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.m5stack.comm5stack.com

SHA-256 Fingerprint

F0:76:F9:68:D0:2F:41:B5:26:83:C0:82:4D:38:D8:E6:D5:30:4D:9C...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

connection

keep-alive

content-length

106568

content-type

text/html; charset=utf-8

date

Tue, 17 Feb 2026 22:56:29 GMT

etag

W/"1a048-HCRJL+kR7v3Tvqdl67fe+LcpbfE"

server

nginx/1.17.9

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

m5stack-com.mail.protection.outlook.com

Domain Information

m5stack.com

Domain Age

10y 2m

Created

14.12.2015

Expires

14.12.2027

Last Updated

11.12.2024

Registrar

Alibaba Cloud Computing (Beijing) Co., Ltd.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

Montserrat + Microsoft YaHei

38/100

Readability

/30

25/40

28px · LH 1.00

Hierarchy

/20

8/25

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Montserrat

Body Font

Microsoft YaHei

Sans28px

Contrast Ratio

Reading Comfort

~47 CPL

Optimal (45–75)

28px

✅ Excellent readability: 28px body text is ideal for all devices.

⚠️ Tight line spacing (1.00). Consider 1.4-1.6 for better readability.

✅ Good performance: Using 1 font families keeps load times fast.

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

✅ Optimal line length: ~47 characters per line is comfortable to read.

✅ Clean layout: Consistent left alignment throughout.

Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

10 Resources

Scripts

Styles

Async

Defer

Top Script Sources

static-cdn.m5stack.com(5)platform.twitter.com(2)static.whatshelp.io(1)googletagmanager.com(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn GitHub Discord

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Last analyzed: 17 Feb 2026 at 22:56

Historical Analysis & Change Tracking