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

lehigh.edu

https://lehigh.edu· First analyzed 14 Feb 2026· Updated 14 Feb 2026

Export

lehigh.edu

Mobile

Sponsored

Hosting Provider

Lehigh University

IP Address

128.180.1.81

Server Location

🇺🇸 Bethlehem, United States

ASN

AS6522

Organization

Lehigh University

Server

Apache

CDN

Varnish

Nameservers

dns1.lehigh.edu.dns3.lehigh.edu.dns2.lehigh.edu.

Performance

Page Speed

6.4 MB

171 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Lehigh University

CDN

Varnish

Technology Stack

10 Technologies Detected

Analytics

CSS Frameworks

Libraries

Icon Libraries

Tag Managers

Advertising

Web Servers

SEO Analysis

B70/100

lehigh.edulehigh.edu

Home | Lehigh University

Home | Lehigh University | At Lehigh, real problem-solving, mentorship and collaboration lead to true and lasting impact, here on our campus, in the Lehigh V...

Description truncated.

Title Length24 chars

Recommended: 50-60 chars

Description Length340 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

60 rules

Sponsored

Security Score

56%Poor

Interactive

HTTPS

No WAF

295d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

GoDaddy.com, Inc.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

04.11.2025

Valid Until

06.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.lehigh.edulehigh.edu

SHA-256 Fingerprint

3F:FC:23:75:D3:EC:D0:C2:18:22:2D:27:13:EC:BD:3C:0F:A7:40:D9...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

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HTTP Headers

Developer Console

accept-ranges

bytes

age

226

cache-control

🟡 1 Hours(max-age=3600, public)

content-encoding

📦 Gzip(gzip)

content-language

content-length

31855

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

alt2.aspmx.l.google.com

alt1.aspmx.l.google.com

aspmx.l.google.com

alt3.aspmx.l.google.com

+1 more

Domain Information

lehigh.edu

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Notice (WP)

Cookie Consent Banner

Cookie Notice (WP)

GDPR Indicators

Cookie consent banner detected

CMP: Cookie Notice (WP)

Typography & Readability

DopisBold + sans-serif

69/100

Readability

/30

32/40

18px · LH 1.30

Hierarchy

/20

21/25

4.19x ratio

WCAG

/25

11/15

Contrast: undefined

Performance

/25

10/20

4 fonts

Heading Font

DopisBold

Sans74px

Body Font

sans-serif

Sans18px

Contrast Ratio

Reading Comfort

~37 CPL

Needs attention

74px

60px

16px

18px

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

✅ Strong hierarchy: Headlines are 4.2x larger than body text.

✅ Consistent design: Single font family with weight variations is a modern best practice.

⚠️ Cramped layout: 35 elements lack adequate spacing.

✅ Clean layout: Consistent left alignment throughout.

Buy on MyFontsVariable Fonts

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Snapchat PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(6)googletagmanager.com(4)connect.facebook.net(2)siteimproveanalytics.com(1)scatec.io(1)

Website Identity

Facebook Instagram YouTube TikTok

Sponsored

Last analyzed: 14 Feb 2026 at 03:27

Historical Analysis & Change Tracking