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.

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elpais.com.uy

https://elpais.com.uy· First analyzed 20 Feb 2026· Updated 20 Feb 2026

Export

elpais.com.uy

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

104.17.107.77

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

mario.ns.cloudflare.com.reza.ns.cloudflare.com.

Performance

Page Speed

553 KB

135 requests

Image Optimization

Lazy LoadWebPResponsive

0–49

50–89

90–100

Architecture Stack

JAMstack

🔀 Hybrid

Decoupled

Frontend

Framework

Next.js

Styling

Bootstrap

API

Data Source

Headless CMS

Strapi

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Detected API Sources

https://embedsocial.com/api/pr...

Technology Stack

19 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Matomo

Advertising

Google Ads Criteo Taboola

CSS Frameworks

Bootstrap

Tailwind CSS

Icon Libraries

Font Awesome Material Icons

Frameworks

Meta Frameworks

Libraries

Fonts

Tag Managers

CDN

Customer Support

Security

SEO Analysis

A88/100

elpais.com.uyelpais.com.uy

Noticias de Uruguay y el mundo actualizadas - EL PAÍS Uruguay

Últimas noticias de Uruguay y del mundo. Política, Economía, Negocios, Deportes, Entretenimiento, Bienestar, fotos, videos, investigaciones y podcast.

Title Length61 chars

Recommended: 50-60 chars

Description Length150 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

270 URLs

robots.txt

2 rules

Allows all crawlers

Sponsored

Security Score

41%Poor

Interactive

HTTPS

WAF

78d

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+H3

Valid From

14.04.2025

Valid Until

09.05.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.elpais.com.uyelpais.com.uy

SHA-256 Fingerprint

C9:98:9B:36:DE:F3:03:FC:3A:BE:E9:D2:B5:F9:7E:06:95:87:30:0D...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

age

alt-svc

h3=":443"; ma=86400

cache-control

🟡 30s(public, max-age=30, s-maxage=120, must-revalidate, proxy-rev...)

cf-apo-via

origin,host

cf-cache-status

DYNAMIC

cf-ray🇩🇪 Frankfurt

9d0da916d90dd345-FRA

Good Warning Issue

Email Infrastructure

Microsoft 365

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

elpais-com-uy.mail.protection.outlook.com

Domain Information

elpais.com.uy

DNSSEC

Not Enabled

Privacy & Compliance

Quantcast Choice

Cookie Consent Banner

Quantcast Choice

GDPR Indicators

Cookie consent banner detected

CMP: Quantcast Choice

Data Protection Officer mentioned

Legitimate interest basis mentioned

Typography & Readability

Arial

60/100

Readability

/30

12/40

13px · LH 2.00

Hierarchy

/20

25/25

2.77x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Arial

Sans36px

Body Font

Arial

Sans13px

Contrast Ratio

Reading Comfort

~39 CPL

Needs attention

36px

17px

21px

13px

❌ Critical: 13px body text is too small. Increase to at least 14px.

✅ Strong hierarchy: Headlines are 2.8x larger than body text.

✅ Good performance: Using 2 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.

✅ Protected text on images: Using gradient for readability.

GGoogle Fonts

Business & Marketing Stack

6 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

Matomo (Piwik)Mid-Market

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Privacy & Cookies

Quantcast ChoiceMid-Market

Cookie consent and privacy compliance tools

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

24 Resources

Scripts

Styles

Async

Defer

Top Script Sources

el-pais.brightspotcdn.com(6)connect.facebook.net(4)googletagmanager.com(2)youtube.com(2)sdk.mrf.io(2)

Website Identity

Facebook X (Twitter)Instagram LinkedIn TikTok Telegram

Sponsored

Last analyzed: 20 Feb 2026 at 11:28

Historical Analysis & Change Tracking