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

microbit.org

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

Export

microbit.org

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

13.33.235.13

Server Location

🇺🇸 New York, United States

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

AmazonS3

CDN

CloudFront

Nameservers

ns-1691.awsdns-19.co.uk.ns-71.awsdns-08.com.ns-960.awsdns-56.net.ns-1247.awsdns-27.org.

Performance

Page Speed

576 KB

48 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

JAMstack

⚡ SSG

Decoupled

Frontend

Framework

Gatsby

API

Data Source

Headless CMS

Sanity

Infrastructure

Hosting

Amazon Web Services (AWS)

CDN

CloudFront

Detected API Sources

https://cdn.sanity.io/images/a...

Technology Stack

4 Technologies Detected

Analytics

Meta Frameworks

CSS Frameworks

SEO Analysis

B70/100

microbit.orgmicrobit.org

Micro:bit Educational Foundation | micro:bit

Micro:bit Educational Foundation: Inspiring every child to create their best digital future

Title Length44 chars

Recommended: 50-60 chars

Description Length91 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (14/25)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

1 URLs

robots.txt

4 rules

Sitemap reference found

Allows all crawlers

Sponsored

Security Score

71%Good

Static / Informational

HTTPS

WAF

349d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

06.01.2026

Valid Until

04.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

microbit.org*.microbit.org

SHA-256 Fingerprint

86:84:B4:2E:F6:3E:D9:25:04:B8:13:E0:C0:1E:F9:00:4D:C1:5F:04...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟡 0s(public, max-age=0, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-type

text/html

date

Fri, 20 Feb 2026 05:19:08 GMT

etag

W/"312f609ce2e08b16613ea448032cfee8"

last-modified

Thu, 19 Feb 2026 17:12:40 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

microbit-org.mail.protection.outlook.com

Domain Information

microbit.org

Domain Age

10y 7m

Created

07.07.2015

Expires

07.07.2026

Last Updated

21.08.2024

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

GT Walsheim + Helvetica Now

73/100

Readability

/30

30/40

18px · LH --

Hierarchy

/20

25/25

2.11x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

10/20

3 fonts

Heading Font

GT Walsheim

Sans38px

Body Font

Helvetica Now

Sans18px

Contrast Ratio

Reading Comfort

~33 CPL

Needs attention

38px

30px

18px

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

✅ Strong hierarchy: Headlines are 2.1x larger than body text.

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

✅ Protected text on images: Using gradient for readability.

⚠️ Cramped layout: 26 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Sponsored

Scripts & Styles

6 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(3)shared-assets.microbit.org(1)googletagmanager.com(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn Threads Bluesky

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Last analyzed: 20 Feb 2026 at 05:19

Historical Analysis & Change Tracking