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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growkudos.com

https://growkudos.com· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

growkudos.com

Sponsored

Hosting Provider

Google Cloud Platform

cloud.google.com

IP Address

34.111.15.37

Server Location

🇺🇸 Kansas City, United States

ASN

AS396982

Organization

Google Cloud

Server

Envoy

Nameservers

ns-17.awsdns-02.com.ns-2026.awsdns-61.co.uk.ns-530.awsdns-02.net.ns-1048.awsdns-03.org.

Performance

Page Speed

119 KB

73 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

Frontend

Framework

Svelte

API

Data Source

Headless CMS

Directus

Infrastructure

Hosting

Google Cloud Platform

Detected API Sources

https://kudos.directus.app/ass...

Technology Stack

5 Technologies Detected

Meta Frameworks

Frameworks

CSS Frameworks

Icon Libraries

SEO Analysis

B70/100

growkudos.comgrowkudos.com

Home – Kudos: Growing the influence of research

Science needs Stories. Kudos brings science to life, so more people can find, understand and use it, bringing researchers recognition and influence.

Title Length47 chars

Recommended: 50-60 chars

Description Length148 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (19/22)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

18 URLs

robots.txt

4 rules

Sitemap reference found

Sponsored

Security Score

41%Poor

Interactive

HTTPS

No WAF

55d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

17.01.2026

Valid Until

17.04.2026

Subject Alternative Names (2)

*.growkudos.comgrowkudos.com

SHA-256 Fingerprint

2E:F3:B6:D3:17:57:4C:A5:AE:88:D4:21:AB:34:5B:C5:3C:02:EF:ED...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

alt-svc

h3=":443"; ma=2592000,h3-29=":443"; ma=2592000

content-encoding

⚡ Brotli(br)

content-length

20022

content-security-policy

frame-ancestors 'none'

content-type

text/html;charset=utf-8

date

Fri, 20 Feb 2026 04:44:49 GMT

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

aspmx3.googlemail.com

alt1.aspmx.l.google.com

aspmx2.googlemail.com

aspmx.l.google.com

+1 more

Domain Information

growkudos.com

Domain Age

12y 10m

Created

12.04.2013

Expires

12.04.2027

Last Updated

02.12.2024

Registrar

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

Messina Sans + system-ui

81/100

Readability

/30

40/40

16px · LH 1.50

Hierarchy

/20

18/25

2.5x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

Messina Sans

Sans40px

Body Font

system-ui

Sans16px

Contrast Ratio

Reading Comfort

~41 CPL

Needs attention

40px

48px

24px

14px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.5x larger than body text.

✅ Good performance: Using 1 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

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

9 Resources

Scripts

Styles

Async

Defer

Top Script Sources

Website Identity

Facebook X (Twitter)LinkedIn YouTube Medium

Sponsored

Last analyzed: 20 Feb 2026 at 04:44

Historical Analysis & Change Tracking