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

upc.edu

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

Export

upc.edu

Mobile

Sponsored

Hosting Provider

UPCnet

IP Address

147.83.2.135

Server Location

🇪🇸 Barcelona, Spain

ASN

AS13041

Organization

UPCnet

Nameservers

ns2.cesca.cat.ns2.upc.edu.ns1.cesca.cat.ns1.upc.edu.

Performance

Page Speed

7.7 MB

66 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

UPCnet

Technology Stack

6 Technologies Detected

Analytics

CSS Frameworks

Libraries

SEO Analysis

C68/100

upc.eduupc.edu

UPC - UPC Universitat Politècnica de Catalunya

No description available for this page.

Title Length46 chars

Recommended: 50-60 chars

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

• Missing meta description - important for click-through rates

4 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

47 rules

Sitemap reference found

Sponsored

Security Score

66%Fair

Interactive

HTTPS

No WAF

285d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Hellenic Academic and Research Institutions CA

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

26.11.2025

Valid Until

26.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (12)

www.upc.edumasters.upc.eduupc.edubarcelonatech.upc.eduupc.esmeritsgestio.upc.eduwww.barcelonatech.upc.edusaladepremsa.upc.edu+4 more

SHA-256 Fingerprint

2D:F9:AC:5D:04:42:DA:E0:00:48:4B:15:B7:FD:85:04:FE:3F:86:73...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin

https://id.siteimprove.com

cache

HIT

cache-control

🟡 0s(max-age=0, s-maxage=86400, must-revalidate)

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-language

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (5)

aspmx.l.google.com

alt3.aspmx.l.google.com

alt4.aspmx.l.google.com

alt2.aspmx.l.google.com

+1 more

Domain Information

upc.edu

DNSSEC

Not Enabled

Privacy & Compliance

Usercentrics

Cookie Consent Banner

Usercentrics

GDPR Indicators

Cookie consent banner detected

CMP: Usercentrics

Typography & Readability

Roboto

75/100

Readability

/30

24/40

14px · LH 1.25

Hierarchy

/20

21/25

3.43x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Roboto

Sans48px

Body Font

Roboto

Sans14px

Contrast Ratio

Reading Comfort

~36 CPL

Needs attention

48px

36px

28px

18px

14px

⚠️ Small text: 14px may be hard to read on mobile. Consider 16px+.

✅ Strong hierarchy: Headlines are 3.4x 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.

✅ Protected text on images: Using gradient for readability.

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Microsoft ClarityFree

Google AnalyticsFree

Google Tag ManagerFree

User behavior and product analytics

Scheduling

CalendlySMB

Appointment and meeting schedulers

Sponsored

Scripts & Styles

14 Resources

Scripts

Styles

Async

Defer

Top Script Sources

upc.edu(3)googletagmanager.com(2)app.usercentrics.eu(2)scripts.clarity.ms(1)clarity.ms(1)

Website Identity

Facebook Instagram TikTok Bluesky

Sponsored

Last analyzed: 14 Feb 2026 at 00:07

Historical Analysis & Change Tracking