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

philamuseum.org

https://philamuseum.org· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

philamuseum.org

Sponsored

Hosting Provider

Vercel

vercel.com

IP Address

216.150.1.1

Server Location

🇺🇸 Walnut, United States

ASN

AS16509

Organization

Vercel, Inc

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

ns2-09.azure-dns.net.ns3-09.azure-dns.org.ns4-09.azure-dns.info.ns1-09.azure-dns.com.

Performance

Page Speed

1.3 MB

93 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Hybrid

🔀 Hybrid

Frontend

Framework

Next.js

Infrastructure

Hosting

Vercel

CDN

Cloudflare

Progressive Web App

Web ManifestApple Touch Icon

Technology Stack

10 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Microsoft Clarity

Advertising

Pinterest Tag TikTok Pixel

Meta Frameworks

CSS Frameworks

Icon Libraries

Tag Managers

CDN

SEO Analysis

A84/100

philamuseum.orgphilamuseum.org

Philadelphia Museum of Art | Exhibitions, Tours & More

Discover the Philadelphia Museum of Art, home to renowned art collections, groundbreaking exhibitions, and a legacy of creativity and innovation.

Title Length54 chars

Recommended: 50-60 chars

Description Length145 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (56/58)

1 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

robots.txt

2 rules

Sitemap reference found

Allows all crawlers

Sponsored

Security Score

76%Good

Static / Informational

HTTPS

WAF

79d

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

09.02.2026

Valid Until

10.05.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.philamuseum.org

SHA-256 Fingerprint

19:EF:22:94:17:37:44:34:FA:3B:A9:A3:20:53:49:B8:0F:2F:05:FC...

Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

age

59669

cache-control

🟡 4 Hours(private, max-age=14400, must-revalidate)

cf-cache-status

HIT

cf-ray🇩🇪 Frankfurt

9d0c5dd9ad32d262-FRA

content-encoding

⚡ Brotli(br)

content-type

text/html; charset=utf-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

philamuseum-org.mx1.arsmtp.com

philamuseum-org.mx2.arsmtp.com

Domain Information

philamuseum.org

Domain Age

29 years

Created

05.02.1997

Expires

06.02.2027

Last Updated

05.02.2026

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

Typography & Readability

FairmountSerif + ESKlarheitGrotesk

60/100

Readability

/30

17/40

14px · LH 1.00

Hierarchy

/20

25/25

13x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

10/20

3 fonts

Heading Font

FairmountSerif

Serif182px

Body Font

ESKlarheitGrotesk

Sans14px

Contrast Ratio

Reading Comfort

~41 CPL

Needs attention

182px

96px

50px

14px

⚠️ Small text: 14px may be hard to read on mobile. Consider 16px+.

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

✅ Strong hierarchy: Headlines are 13.0x larger than body text.

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

⚠️ Cramped layout: 53 elements lack adequate spacing.

Buy on MyFontsVariable Fonts

Business & Marketing Stack

6 Tools Detected

Advanced

Behavior Analytics

Microsoft ClarityFree

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Pinterest AdsMid-Market

TikTok PixelMid-Market

Reddit PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(9)analytics.tiktok.com(3)s.pinimg.com(2)googletagmanager.com(2)google-analytics.com(1)

Website Identity

Facebook X (Twitter)Instagram YouTube TikTok

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Last analyzed: 20 Feb 2026 at 07:42

Historical Analysis & Change Tracking