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

rockefeller.edu

https://rockefeller.edu· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

rockefeller.edu

Sponsored

Hosting Provider

The Rockefeller University

IP Address

129.85.244.162

Server Location

🇺🇸 New York, United States

ASN

AS98

Organization

The Rockefeller University

Server

Nginx

Nameservers

rockyd.rockefeller.edu.r2d2.rockefeller.edu.

Performance

Page Speed

6.1 MB

91 requests

Image Optimization

Responsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPressv6.3.5

cms

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

13 Technologies Detected

Analytics

Libraries

Other

CSS Frameworks

Icon Libraries

Fonts

Adobe Fonts (Typekit)

Email Marketing

Social

Web Servers

Languages

Plugins

SEO Analysis

B76/100

rockefeller.edurockefeller.edu

The Rockefeller University

No description available for this page.

Title Length26 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

• Missing meta description - important for click-through rates

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

4 URLs

robots.txt

9 rules

Sponsored

Security Score

36%Critical

Interactive

HTTPS

No WAF

103d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-384 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

02.06.2025

Valid Until

02.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.rockefeller.edurockefeller.edu

SHA-256 Fingerprint

4B:67:4A:E6:23:93:F4:68:7C:05:47:42:E4:58:7D:FB:54:00:29:DD...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟡 3s(max-age=3, must-revalidate, private)

content-encoding

📦 Gzip(gzip)

content-length

17378

content-type

text/html; charset=UTF-8

date

Thu, 19 Feb 2026 22:51:46 GMT

server

nginx/1.20.1

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mxa-00185a01.gslb.pphosted.com

mxb-00185a01.gslb.pphosted.com

Domain Information

rockefeller.edu

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Typography & Readability

Georgia

67/100

Readability

/30

32/40

25px · LH 1.27

Hierarchy

/20

25/25

2.16x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Georgia

Serif54px

Body Font

Georgia

Serif25px

Contrast Ratio

Reading Comfort

~37 CPL

Needs attention

54px

40px

27px

25px

✅ Excellent readability: 25px body text is ideal for all devices.

✅ 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.

⚠️ Risky: Text appears on background images without overlay protection.

⚠️ Cramped layout: 17 elements lack adequate spacing.

AAdobe Fonts Buy on MyFonts

Business & Marketing Stack

5 Tools Detected

Enterprise

Marketing Automation

MailchimpSMB

Email marketing and automation platforms

Behavior Analytics

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Social Media

ShareThisFree

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

10 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(2)buttons-config.sharethis.com(1)google-analytics.com(1)googletagmanager.com(1)use.typekit.net(1)

Website Identity

Facebook X (Twitter)Instagram

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Last analyzed: 19 Feb 2026 at 22:51

Historical Analysis & Change Tracking