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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canalys.com

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

Export

canalys.com

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

108.138.26.120

Server Location

🇩🇪 Frankfurt am Main, Germany

ASN

AS16509

Organization

AWS CloudFront (GLOBAL)

Server

CloudFront

CDN

CloudFront

Nameservers

ridge.ns.cloudflare.com.monika.ns.cloudflare.com.

Performance

Page Speed

3.3 MB

69 requests

Image Optimization

WebP

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Ghost

Technology Stack

10 Technologies Detected

Analytics

Frameworks

Libraries

Other

AOS (Animate On Scroll)

CSS Frameworks

Tailwind CSS

Icon Libraries

Font Awesome

CDN

Amazon CloudFront

SEO Analysis

D52/100

canalys.comcanalys.com

Canalys, now Omdia, is a leading global technology market analyst f...

Canalys, now Omdia, is a leading global technology market analyst firm with a distinct channel focus. We deliver channels and tech analysis, data and events ...

Title truncated. Description truncated.

Title Length71 chars

Recommended: 50-60 chars

Description Length196 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (22/27)

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Sponsored

Security Score

76%Good

Static / Informational

HTTPS

No WAF

223d

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

01.09.2025

Valid Until

30.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (4)

canalys.comcandefero.com*.canalys.com*.candefero.com

SHA-256 Fingerprint

F3:66:3B:FE:B9:A3:84:C1:25:BE:9F:E0:20:B4:FA:4D:7F:73:3F:3C...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

content-length

116147

content-type

text/html

date

Thu, 19 Feb 2026 23:09:50 GMT

etag

"9a04cb21a2da4c7e61e9f22277e804df"

last-modified

Thu, 15 Jan 2026 05:01:39 GMT

Good Warning Issue

Email Infrastructure

Mimecast

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

us-smtp-inbound-1.mimecast.com

us-smtp-inbound-2.mimecast.com

Domain Information

canalys.com

Domain Age

27y 6m

Created

02.08.1998

Expires

01.08.2026

Last Updated

03.11.2024

Registrar

SafeNames Ltd.

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

Open Sans

62/100

Readability

/30

12/40

13px · LH 1.38

Hierarchy

/20

25/25

2.22x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Open Sans

Sans29px

Body Font

Open Sans

Sans13px

Contrast Ratio

Reading Comfort

~40 CPL

Needs attention

29px

24px

13px

❌ Critical: 13px body text is too small. Increase to at least 14px.

✅ Strong hierarchy: Headlines are 2.2x 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.

✅ Protected text on images: Using text-shadow for readability.

⚠️ Cramped layout: 18 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

HotjarMid-Market

Google Tag ManagerFree

User behavior and product analytics

Privacy & Cookies

Quantcast ChoiceMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

10 Resources

Scripts

Styles

Async

Defer

Top Script Sources

transcend-cdn.com(3)googletagmanager.com(1)runtime.js(1)polyfills.js(1)scripts.js(1)

Website Identity

X (Twitter)LinkedIn YouTube

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Last analyzed: 19 Feb 2026 at 23:09

Historical Analysis & Change Tracking