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

emol.com

https://emol.com· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

emol.com

Sponsored

Hosting Provider

El Mercurio

IP Address

200.12.19.11

Server Location

🇨🇱 Vitacura, Chile

ASN

AS6429

Organization

El Mercurio

CDN

Nameservers

ns4.emol.com.ns1.emol.com.ns3.emol.com.ns5.emol.com.+1 more

Performance

Page Speed

5 KB

146 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

El Mercurio

CDN

Technology Stack

10 Technologies Detected

Analytics

Google Analytics

Facebook Pixel FullStory

Libraries

CSS Frameworks

Meta Frameworks

Other

Icon Libraries

SEO Analysis

A85/100

emol.comemol.com

EMOL - El sitio de noticias online de Chile.

Todas las noticias de Chile y el Mundo. Entra e informate de los últimos acontecimientos ocurridos en nuestro país en Emol.com

Title Length44 chars

Recommended: 50-60 chars

Description Length126 chars

Recommended: 120-160 chars

Issues (0)

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

robots.txt

45 rules

Sitemap reference found

Sponsored

Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

12d

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/1.1

Valid From

31.01.2025

Valid Until

04.03.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.emol.comemol.com

SHA-256 Fingerprint

CB:4C:A0:2B:67:50:67:C1:65:B2:30:2E:78:07:94:16:EA:8F:AA:5A...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

access-control-allow-origin

age

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-length

35645

Good Warning Issue

Email Infrastructure

Barracuda

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (3)

d8575a.ess.barracudanetworks.com

lobo.mercurio.cl

d8575b.ess.barracudanetworks.com

Domain Information

emol.com

Domain Age

27y 1m

Created

14.01.1999

Expires

14.01.2030

Last Updated

17.10.2022

Registrar

GoDaddy.com, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Data Protection Officer mentioned

Typography & Readability

Arial

67/100

Readability

/30

12/40

12px · LH 1.33

Hierarchy

/20

25/25

2.08x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Arial

Sans25px

Body Font

Arial

Sans12px

Contrast Ratio

Reading Comfort

~43 CPL

Needs attention

25px

14px

18px

12px

❌ Critical: 12px body text is too small. Increase to at least 14px.

✅ Strong hierarchy: Headlines are 2.1x 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.

⚠️ Cramped layout: 32 elements lack adequate spacing.

✅ Clean layout: Consistent left alignment throughout.

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Matomo (Piwik)Mid-Market

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

static.emol.cl(11)connect.facebook.net(2)youtube.com(2)geo.emol.cl(1)pram.elmercurio.com(1)

Website Identity

X (Twitter)

Sponsored

Last analyzed: 19 Feb 2026 at 15:25

Historical Analysis & Change Tracking