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

udel.edu

https://udel.edu· First analyzed 11 Feb 2026· Updated 11 Feb 2026

Export

udel.edu

Mobile

Sponsored

Hosting Provider

University of Delaware

IP Address

128.175.13.247

Server Location

🇺🇸 Newark, United States

ASN

AS34

Organization

University of Delaware

Server

Apache

Nameservers

dns2.udel.edu.dns1.udel.edu.adns2.nnn.upenn.edu.adns1.nnn.upenn.edu.+1 more

Performance

Page Speed

31.2 MB

115 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Adobe Experience Manager

Technology Stack

12 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Segment

Advertising

LinkedIn Ads Snapchat Pixel Outbrain

Libraries

CSS Frameworks

Icon Libraries

Tag Managers

Web Servers

SEO Analysis

B70/100

udel.eduudel.edu

University of Delaware

The University of Delaware is a diverse institution of higher learning, fostering excellence in research. UD has ten colleges, providing outstanding undergra...

Description truncated.

Title Length22 chars

Recommended: 50-60 chars

Description Length269 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

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Security Score

41%Poor

Interactive

HTTPS

No WAF

91d

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

content-encoding

📦 Gzip(gzip)

content-length

14873

content-type

text/html;charset=utf-8

date

Wed, 11 Feb 2026 10:20:35 GMT

etag

"15c0d-64a8008800c20-gzip"

Good Warning Issue

Typography & Readability

vanguard-regular + greycliff-light

55/100

Readability

/30

32/40

23px · LH 1.30

Hierarchy

/20

18/25

3.48x ratio

WCAG

/25

5/15

Contrast: undefined

Performance

/25

17/20

System fonts

Heading Font

vanguard-regular

Sans80px

Body Font

greycliff-light

Sans23px

Contrast Ratio

Reading Comfort

~32 CPL

Needs attention

80px

30px

20px

23px

✅ Excellent readability: 23px body text is ideal for all devices.

✅ Strong hierarchy: Headlines are 3.5x larger than body text.

✅ Excellent performance: System fonts eliminate font loading delays (better LCP).

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

⚠️ Cramped layout: 43 elements lack adequate spacing.

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Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

LinkedIn AdsEnterprise

Snapchat PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

23 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(6)connect.facebook.net(5)tr.snapchat.com(1)info.online.udel.edu(1)go.discover.grad.udel.edu(1)

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Last analyzed: 11 Feb 2026 at 10:20

Historical Analysis & Change Tracking