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

iol.pt

https://iol.pt· First analyzed 19 Feb 2026· Updated 19 Feb 2026

Export

iol.pt

Sponsored

Hosting Provider

EUnet

IP Address

193.126.240.131

Server Location

🇵🇹 Porto, Portugal

ASN

AS1897

CDN

Nameservers

jillian.ns.cloudflare.com.sri.ns.cloudflare.com.

Performance

Page Speed

926 KB

102 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

Technology Stack

14 Technologies Detected

Advertising

Google Ads Criteo Taboola Outbrain

Analytics

Libraries

CSS Frameworks

Icon Libraries

Fonts

Tag Managers

Payments

Plugins

SEO Analysis

C67/100

iol.ptiol.pt

Notícias de hoje - IOL

O portal com os conteúdos e marcas do grupo Media Capital (TVI, CNN, MaisFutebol, SELFIE, VERSA, AWAY, AutoPortal)

Title Length22 chars

Recommended: 50-60 chars

Description Length114 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (40/43)

4 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

15 URLs

robots.txt

22 rules

Sitemap reference found

Sponsored

Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

246d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

22.09.2025

Valid Until

23.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.iol.ptiol.pt

SHA-256 Fingerprint

3E:E7:F2:A6:99:76:A1:BB:68:9B:54:C1:66:F5:DD:E8:3D:99:55:F4...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-language

en-US

content-length

37640

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

smtp-box-01.iol.pt

Domain Information

iol.pt

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

Open Sans + Gotham

48/100

Readability

/30

12/40

14px · LH 1.25

Hierarchy

/20

15/25

1.32x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

13/20

2 fonts

Heading Font

Open Sans

Sans18px

Body Font

Gotham

Sans14px

Contrast Ratio

Reading Comfort

~39 CPL

Needs attention

18px

14px

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

⚠️ Weak hierarchy: Headlines should be at least 2x body size for clear visual structure.

✅ Good performance: Using 2 font families keeps load times fast.

✅ Smart font loading: Using font-display: swap prevents invisible text during load.

⚠️ Cramped layout: 6 elements lack adequate spacing.

GGoogle Fonts

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

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

cdn.iol.pt(5)googletagmanager.com(4)connect.facebook.net(2)local(2)static.chartbeat.com(1)

Website Identity

Facebook Instagram

Sponsored

Last analyzed: 19 Feb 2026 at 10:01

Historical Analysis & Change Tracking