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

umsl.edu

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

Export

umsl.edu

Mobile

Sponsored

Hosting Provider

University of Missouri-St. Louis

IP Address

134.124.1.234

Server Location

🇺🇸 St Louis, United States

ASN

AS2572

Organization

University of Missouri-St. Louis

Server

Nginx

Nameservers

sdns-ns2.mst.edu.sdns-ns1.mst.edu.ns2.umsl.edu.ns1.umsl.edu.+1 more

Performance

Page Speed

2.1 MB

103 requests

Image Optimization

WebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

University of Missouri-St. Louis

Technology Stack

13 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Microsoft Clarity

CSS Frameworks

Tailwind CSS

Bootstrap

Advertising

Google Ads LinkedIn Ads

Libraries

Icon Libraries

Fonts

Tag Managers

Web Servers

SEO Analysis

C64/100

umsl.eduumsl.edu

University of Missouri–St. Louis | UMSL

The University of Missouri–St. Louis delivers exceptional educational, research and engagement experiences that inform, prepare, challenge and inspire.

Title Length39 chars

Recommended: 50-60 chars

Description Length151 chars

Recommended: 120-160 chars

Issues (0)

5 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

21 rules

Sponsored

Security Score

21%Critical

Interactive

HTTPS

No WAF

131d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Internet2

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

30.06.2025

Valid Until

30.06.2026

OCSP Stapling

Enabled

Subject Alternative Names (3)

www.umsl.edu*.umsl.eduumsl.edu

SHA-256 Fingerprint

25:DF:E3:17:9F:1F:13:35:ED:40:02:CE:A5:C7:B6:55:40:04:64:CD...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

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HTTP Headers

Developer Console

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-type

text/html

date

Thu, 19 Feb 2026 11:51:36 GMT

etag

W/"10bb2-64b2a5eedd695"

last-modified

Thu, 19 Feb 2026 10:00:13 GMT

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

umsl-edu.mail.protection.outlook.com

Domain Information

umsl.edu

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

Typography & Readability

Oswald + sans-serif

77/100

Readability

/30

25/40

19px · LH 1.10

Hierarchy

/20

25/25

4.21x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

17/20

System fonts

Heading Font

Oswald

Sans81px

Body Font

sans-serif

Sans19px

Contrast Ratio

Reading Comfort

~37 CPL

Needs attention

81px

51px

24px

19px

✅ Excellent readability: 19px body text is ideal for all devices.

⚠️ Tight line spacing (1.10). Consider 1.4-1.6 for better readability.

✅ Strong hierarchy: Headlines are 4.2x 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.

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

GGoogle Fonts

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Microsoft ClarityFree

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

LinkedIn AdsEnterprise

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(5)connect.facebook.net(3)umsl.edu(3)scripts.clarity.ms(1)cse.google.com(1)

Website Identity

Facebook Instagram TikTok

Sponsored

Last analyzed: 19 Feb 2026 at 11:51

Historical Analysis & Change Tracking