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

kidshealth.org

https://kidshealth.org· First analyzed 12 Feb 2026· Updated 12 Feb 2026

Export

kidshealth.org

Mobile

Sponsored

Hosting Provider

The Nemours Foundation

IP Address

198.140.158.67

Server Location

🇺🇸 Orlando, United States

ASN

AS398743

Organization

The Nemours Foundation

Server

Apache

Nameservers

dns2.p01.nsone.net.dns3.p01.nsone.net.dns4.p01.nsone.net.spdns3.cscdns.net.+1 more

Performance

Page Speed

581 KB

46 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Adobe Experience Manager

Technology Stack

5 Technologies Detected

Libraries

CSS Frameworks

Fonts

Analytics

Web Servers

SEO Analysis

B70/100

kidshealth.orgkidshealth.org

Nemours KidsHealth - the Web's most visited site about children's h...

KidsHealth is the #1 most-trusted source for physician-reviewed information and advice on children's health and parenting issues. For parents, kids, teens, a...

Title truncated. Description truncated.

Title Length72 chars

Recommended: 50-60 chars

Description Length197 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

8,042 URLs

robots.txt

19 rules

Sitemap reference found

Allows all crawlers

Sponsored

Security Score

41%Poor

Interactive

HTTPS

No WAF

206d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Corporation Service Company

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

25.08.2025

Valid Until

06.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.kidshealth.orgkidshealth.org

SHA-256 Fingerprint

64:51:BF:01:66:32:28:83:5D:6A:9A:7D:13:51:7C:A9:8C:4F:9D:C0...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

access-control-allow-private-network

true

age

62687

cache-control

🔴 No Cache(no-cache, private)

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

100

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mx0b-001e3f01.pphosted.com

mx0a-001e3f01.pphosted.com

Domain Information

kidshealth.org

Domain Age

30y 5m

Created

01.09.1995

Expires

31.08.2027

Last Updated

18.05.2023

Registrar

CSC Corporate Domains, Inc.

DNSSEC

Not Enabled

Typography & Readability

Montserrat + sans-serif

48/100

Readability

/30

20/40

10px · LH 1.50

Hierarchy

/20

25/25

3.2x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Montserrat

Sans32px

Body Font

sans-serif

Sans10px

Contrast Ratio

Reading Comfort

~37 CPL

Needs attention

32px

48px

10px

Minor Second

Scale

❌ Critical: 10px body text is too small. Increase to at least 14px.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 3.2x larger than body text.

✅ Good performance: Using 2 font families keeps load times fast.

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

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

GGoogle Fonts

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

PostHogMid-Market

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

18 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(7)us-assets.i.posthog.com(5)assets.adobedtm.com(1)us.i.posthog.com(1)

Website Identity

Facebook X (Twitter)

Sponsored

Last analyzed: 12 Feb 2026 at 15:00

Historical Analysis & Change Tracking