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

eib.org

https://eib.org· First analyzed 16 Feb 2026· Updated 16 Feb 2026

Export

eib.org

Sponsored

Hosting Provider

Anycast Worldwide

IP Address

159.60.131.141

Server Location

🇳🇱 Amsterdam, The Netherlands

ASN

AS35280

Organization

Anycast Worldwide

Nameservers

ns1.eib.org.ns3.eib.org.ns2.eib.org.

Performance

Page Speed

1.1 MB

91 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Framework

jQuery

Styling

Bootstrap

Infrastructure

Hosting

Anycast Worldwide

Technology Stack

8 Technologies Detected

UI Components

CSS Frameworks

Libraries

Other

Icon Libraries

Analytics

SEO Analysis

B72/100

eib.orgeib.org

Homepage | European Investment Bank

The European Investment Bank (EIB) is the lending arm of the European Union. We are the world’s largest multilateral lender and the biggest provider of clima...

Description truncated.

Title Length35 chars

Recommended: 50-60 chars

Description Length168 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (18/19)

3 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

robots.txt

39 rules

Sitemap reference found

Sponsored

A+

Security Score

95%Excellent

Interactive

HTTPS

No WAF

47d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

04.01.2026

Valid Until

04.04.2026

Subject Alternative Names (1)

www.eib.org

SHA-256 Fingerprint

A1:9D:EC:A0:B4:50:0F:0E:85:F1:0E:90:36:E6:25:FC:8F:F7:47:71...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin

cache-control

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

content-encoding

📦 Gzip(gzip)

content-length

18415

content-security-policy

default-src 'self' https://*.eib.org;media-src 'self' blob:...

content-type

text/html; charset=utf-8

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Reject (Strictest)

MX Records (2)

mx1.hc1688-68.eu.iphmx.com

mx2.hc1688-68.eu.iphmx.com

Domain Information

eib.org

Domain Age

29y 9m

Created

07.05.1996

Expires

08.05.2031

Last Updated

30.10.2025

Registrar

Network Solutions, LLC

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

Cookie consent banner detected

Typography & Readability

Alegreya Sans + sans-serif

95/100

Readability

/30

40/40

18px · LH 1.60

Hierarchy

/20

25/25

2.22x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Alegreya Sans

Sans40px

Body Font

sans-serif

Sans18px

Contrast Ratio

Reading Comfort

~36 CPL

Needs attention

40px

16px

32px

18px

Minor Third

Scale

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line spacing: 1.60 ratio ensures comfortable reading.

✅ Strong hierarchy: Headlines are 2.2x 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: 51 elements lack adequate spacing.

Buy on MyFonts

Business & Marketing Stack

3 Tools Detected

Growing

Behavior Analytics

Matomo (Piwik)Mid-Market

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

tech.eib.org(17)piwik.eib.org(2)gstatic.com(1)

Website Identity

Facebook X (Twitter)Instagram LinkedIn

Sponsored

Last analyzed: 16 Feb 2026 at 06:03

Historical Analysis & Change Tracking