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

um.es

https://um.es· First analyzed 15 Feb 2026· Updated 15 Feb 2026

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um.es

Mobile

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Hosting Provider

Universidad de Murcia

IP Address

155.54.212.103

Server Location

🇪🇸 Murcia, Spain

ASN

AS34511

Server

Nginx

Nameservers

dns2.um.es.dns1.um.es.

Performance

Page Speed

3.2 MB

111 requests

Image Optimization

Responsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Bootstrap

Infrastructure

Hosting

Universidad de Murcia

Technology Stack

8 Technologies Detected

Analytics

Frameworks

Libraries

Other

CSS Frameworks

Tag Managers

Web Servers

SEO Analysis

B70/100

um.esum.es

Universidad - Página Principal - Universidad de Murcia

Web de la Universidad de Murcia

Title Length54 chars

Recommended: 50-60 chars

Description Length31 chars

Recommended: 120-160 chars

Issues (0)

4 issues found

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Crawlability

Sitemap

Type: index

1 URLs

robots.txt

16 rules

Sponsored

Security Score

56%Poor

Interactive

HTTPS

No WAF

284d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Hellenic Academic and Research Institutions CA

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

26.11.2025

Valid Until

26.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (12)

*.um.esum.es*.k8stest.um.esk8stest.um.es*.atica.um.esatica.um.es*.k8sprod.um.esk8sprod.um.es+4 more

SHA-256 Fingerprint

BD:03:17:98:DC:AA:34:13:64:B1:42:38:DA:A5:5E:5D:2B:EA:29:54...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🔴 No Cache(private, no-cache, no-store, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-type

text/html;charset=UTF-8

date

Sun, 15 Feb 2026 05:19:02 GMT

expires

Thu, 01 Jan 1970 00:00:00 GMT

liferay-portal

Liferay Community Edition Portal

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

mx04.puc.rediris.es

mx03.puc.rediris.es

Domain Information

um.es

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

IBM Plex Sans

76/100

Readability

/30

40/40

20px · LH 1.50

Hierarchy

/20

8/25

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

1 font

Heading Font

IBM Plex Sans

Sans

Body Font

IBM Plex Sans

Sans20px

Contrast Ratio

Reading Comfort

Single Font Family

left aligned

40px

69px

Major Sixth

Scale

✅ Excellent readability: 20px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio ensures comfortable reading.

✅ Good performance: Using 1 font families keeps load times fast.

✅ 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.

✅ Clean layout: Consistent left alignment throughout.

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Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

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Scripts & Styles

28 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(9)um.es(5)cdn.datatables.net(4)googletagmanager.com(2)

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Last analyzed: 15 Feb 2026 at 05:19

Historical Analysis & Change Tracking