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

vt.edu

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

Export

vt.edu

Mobile

Sponsored

Hosting Provider

Virginia Polytechnic Institute and State Univ.

IP Address

198.82.215.14

Server Location

🇺🇸 Blacksburg, United States

ASN

AS1312

Organization

Virginia Polytechnic Institute and State Univ.

Server

Apache

CDN

CloudFront

Nameservers

auth2.dns.cogentco.com.clature.cns.vt.edu.auth1.dns.cogentco.com.nomen.cns.vt.edu.

Performance

Page Speed

1.6 MB

162 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Adobe Experience Manager

Technology Stack

14 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Crazy Egg

Advertising

Google Ads Twitter Ads LinkedIn Ads Microsoft Advertising

CSS Frameworks

Libraries

Icon Libraries

Tag Managers

Web Servers

SEO Analysis

D52/100

vt.eduvt.edu

Home | Virginia Tech

No description available for this page.

Title Length20 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 (15/24)

5 issues found

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Security Score

72%Good

Interactive

HTTPS

No WAF

337d

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

age

60488

cache-control

🟡 600s(max-age=600)

content-encoding

📦 Gzip(gzip)

content-length

16092

content-type

text/html;charset=utf-8

Good Warning Issue

Typography & Readability

rubik + sans-serif

70/100

Readability

/30

32/40

23px · LH 2.00

Hierarchy

/20

18/25

2.4x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

10/20

3 fonts

Heading Font

rubik

Sans54px

Body Font

sans-serif

Sans23px

Contrast Ratio

Reading Comfort

~47 CPL

Optimal (45–75)

54px

36px

23px

✅ Excellent readability: 22px body text is ideal for all devices.

✅ Strong hierarchy: Headlines are 2.4x larger than body text.

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

✅ Protected text on images: Using gradient for readability.

✅ Optimal line length: ~46 characters per line is comfortable to read.

⚠️ Cramped layout: 12 elements lack adequate spacing.

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Business & Marketing Stack

9 Tools Detected

Enterprise

Behavior Analytics

Crazy EggSMB

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Twitter/X AdsMid-Market

LinkedIn AdsEnterprise

Microsoft AdsEnterprise

Reddit PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

24 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(7)connect.facebook.net(3)script.crazyegg.com(2)youtube.com(2)snap.licdn.com(1)

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Last analyzed: 11 Feb 2026 at 07:15

Historical Analysis & Change Tracking