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

facs.org

https://facs.org· First analyzed 17 Feb 2026· Updated 17 Feb 2026

Export

facs.org

Sponsored

Hosting Provider

Microsoft Azure

azure.microsoft.com

IP Address

20.49.97.16

Server Location

🇺🇸 Boydton, United States

ASN

AS8075

Organization

Microsoft Azure App Service (eastus2)

CDN

Nameservers

ns14.dnsmadeeasy.com.ns13.dnsmadeeasy.com.ns12.dnsmadeeasy.com.ns11.dnsmadeeasy.com.+2 more

Performance

Page Speed

414 KB

52 requests

Image Optimization

Lazy LoadWebPResponsiveFastly Image Optimizer

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Umbraco

Technology Stack

5 Technologies Detected

Analytics

CSS Frameworks

Tag Managers

SEO Analysis

A88/100

facs.orgfacs.org

The American College of Surgeons | ACS

The American College of Surgeons (ACS) is a professional organization dedicated to improving surgical care through education, research, standards, and advocacy.

Title Length38 chars

Recommended: 50-60 chars

Description Length160 chars

Recommended: 120-160 chars

Issues (0)

1 issues found

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Crawlability

Sitemap

Type: standard

5,600 URLs

robots.txt

3 rules

Sponsored

Security Score

81%Very Good

Interactive

HTTPS

No WAF

170d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

06.02.2026

Valid Until

06.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.facs.org

SHA-256 Fingerprint

2E:FB:DF:E9:58:C9:A2:B0:E7:BA:62:5F:55:64:81:01:7E:09:8B:01...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

access-control-allow-headers

access-control-allow-methods

age

133

cache-control

🟡 1800s(public,max-age=1800)

content-encoding

📦 Gzip(gzip)

content-security-policy

upgrade-insecure-requests; media-src https: data: blob:; img...

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (1)

facs-org.mail.protection.outlook.com

Domain Information

facs.org

Domain Age

30y 10m

Created

22.04.1995

Expires

23.04.2026

Last Updated

21.02.2023

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Osano

Cookie Consent Banner

Osano

GDPR Indicators

Cookie consent banner detected

CMP: Osano

Typography & Readability

Tiempos Fine + Helvetica

63/100

Readability

/30

40/40

18px · LH 1.78

Hierarchy

/20

25/25

4x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

10/20

4 fonts

Heading Font

Tiempos Fine

Sans72px

Body Font

Helvetica

Sans18px

Contrast Ratio

Reading Comfort

~37 CPL

Needs attention

72px

42px

18px

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.78 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 4.0x larger than body text.

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

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

⚠️ Cramped layout: 28 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

4 Tools Detected

Enterprise

Marketing Automation

MarketoEnterprise

Email marketing and automation platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

OsanoMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

21 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(4)local(4)cmp.osano.com(1)web.propfuel.com(1)polyfill-fastly.io(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn YouTube

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Last analyzed: 17 Feb 2026 at 18:55

Historical Analysis & Change Tracking