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

slu.edu

https://slu.edu· First analyzed 16 Feb 2026· Updated 16 Feb 2026

Export

slu.edu

Sponsored

Hosting Provider

Databank Holdings

IP Address

173.213.236.59

Server Location

🇺🇸 Santa Rosa, United States

ASN

AS22903

Server

slu.edu

CDN

Cloudflare

WAF

Cloudflare

Nameservers

lloyd.ns.cloudflare.com.deb.ns.cloudflare.com.

Performance

Page Speed

3.2 MB

144 requests

Image Optimization

WebP

0–49

50–89

90–100

Architecture Stack

Headless

⚙️ SSR

Decoupled

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

Databank Holdings

CDN

Cloudflare

Progressive Web App

Web ManifestApple Touch IconTheme Color

Detected API Sources

https://www.juicer.io/api/medi...

Technology Stack

12 Technologies Detected

Fonts

Google Fonts Adobe Fonts (Typekit)Adobe Fonts

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel

Advertising

TikTok Pixel Snapchat Pixel

Libraries

CSS Frameworks

Icon Libraries

Tag Managers

SEO Analysis

D58/100

slu.eduslu.edu

Saint Louis University | SLU.edu : SLU - Saint Louis University

No description available for this page.

Title Length63 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

• Missing meta description - important for click-through rates
• Many images missing alt text (53/70)

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

63,884 URLs

robots.txt

14 rules

Sitemap reference found

Sponsored

Security Score

56%Poor

Interactive

HTTPS

No WAF

271d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Internet2

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

14.11.2025

Valid Until

14.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

slu.edu*.slu.edu

SHA-256 Fingerprint

F1:5D:1B:49:87:37:1F:75:DD:15:5D:28:60:D5:31:A8:C1:F3:9B:98...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin

cache-control

🟡 0s(public, max-age=0, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-length

36327

content-type

text/html; charset=UTF-8

date

Mon, 16 Feb 2026 14:59:48 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mxa-00234e01.gslb.pphosted.com

mxb-00234e01.gslb.pphosted.com

Domain Information

slu.edu

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

Typography & Readability

farnham-display + sans-serif

88/100

Readability

/30

40/40

16px · LH 1.50

Hierarchy

/20

25/25

5x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

farnham-display

Serif80px

Body Font

sans-serif

Sans16px

Contrast Ratio

Reading Comfort

~35 CPL

Needs attention

80px

36px

20px

16px

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

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 5.0x larger than body text.

✅ Good performance: Using 2 font families keeps load times fast.

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

✅ Protected text on images: Using gradient for readability.

GGoogle Fonts AAdobe Fonts Buy on MyFonts

Business & Marketing Stack

6 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

TikTok PixelMid-Market

Snapchat PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

27 Resources

Scripts

Styles

Async

Defer

Top Script Sources

connect.facebook.net(7)googletagmanager.com(5)analytics.tiktok.com(3)sc-static.net(1)siteimproveanalytics.com(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn YouTube TikTok

Sponsored

Last analyzed: 16 Feb 2026 at 15:00

Historical Analysis & Change Tracking