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

cedars-sinai.org

https://cedars-sinai.org· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

cedars-sinai.org

Sponsored

Hosting Provider

Cedars-Sinai Health Systems

IP Address

192.231.86.22

Server Location

🇺🇸 Los Angeles, United States

ASN

AS29721

Organization

Cedars-Sinai Health Systems

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns1.csmc.edu.ns2.csmc.edu.

Performance

Page Speed

9.1 MB

58 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

Cedars-Sinai Health Systems

CDN

Cloudflare

Detected API Sources

https://maps.googleapis.com/ma...

Technology Stack

7 Technologies Detected

Fonts

Google Fonts Adobe Fonts (Typekit)Adobe Fonts

Meta Frameworks

Libraries

CSS Frameworks

CDN

SEO Analysis

A88/100

cedars-sinai.orgcedars-sinai.org

A Nonprofit Hospital in Los Angeles | Cedars-Sinai

Cedars-Sinai offers world-class specialty care from expert physicians. We're pioneering research and education while setting new standards for patient care.

Title Length50 chars

Recommended: 50-60 chars

Description Length156 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

6 URLs

robots.txt

16 rules

Sitemap reference found

Sponsored

Security Score

81%Very Good

Interactive

HTTPS

WAF

78d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

05.02.2026

Valid Until

06.05.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.cedars-sinai.org*.www.cedars-sinai.org

SHA-256 Fingerprint

E6:D0:B1:6D:4A:F6:71:75:12:1B:90:63:92:FC:D6:31:2E:F0:FA:70...

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-headers

Origin,Accept,Accept-Language,Content-Type,Authorization,X-R...

access-control-allow-methods

GET,POST,PUT,DELETE,OPTIONS

access-control-max-age

86400

age

1223

cache-control

🟡 1 Hours(max-age=3600, public)

cf-cache-status

DYNAMIC

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mxb-00260502.gslb.pphosted.com

mxa-00260502.gslb.pphosted.com

Domain Information

cedars-sinai.org

Domain Age

27y 7m

Created

14.07.1998

Expires

13.07.2030

Last Updated

29.05.2025

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Typography & Readability

arial

34/100

Readability

/30

25/40

16px · LH 1.00

Hierarchy

/20

8/25

1x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

arial

Sans16px

Body Font

arial

Sans16px

Contrast Ratio

Reading Comfort

~35 CPL

Needs attention

16px

Minor Second

Scale

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

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

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

✅ Good performance: Using 1 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.

AAdobe Fonts Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Enterprise

Marketing Automation

MarketoEnterprise

Email marketing and automation platforms

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

A/B Testing & Optimization

KameleoonEnterprise

Experimentation and conversion optimization

Sponsored

Scripts & Styles

23 Resources

Scripts

Styles

Async

Defer

Top Script Sources

assets.adobedtm.com(11)maps.googleapis.com(3)munchkin.marketo.net(2)rum.hlx.page(1)ajax.googleapis.com(1)

Website Identity

Facebook Instagram LinkedIn YouTube

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Last analyzed: 17 Feb 2026 at 02:52

Historical Analysis & Change Tracking