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

hostnet.nl

https://hostnet.nl· First analyzed 13 Feb 2026· Updated 13 Feb 2026

Export

hostnet.nl

Mobile

Sponsored

Hosting Provider

Hostnet BV

IP Address

91.184.8.50

Server Location

🇩🇰 Copenhagen, Denmark

ASN

AS51468

Organization

Hostnet BV

Server

Apache

Nameservers

ns02.authdns.hostnet.nl.ns01.authdns.hostnet.nl.

Performance

Page Speed

928 KB

57 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

13 Technologies Detected

Analytics

CSS Frameworks

Frameworks

Libraries

UI Components

Other

Tag Managers

Reviews

Web Servers

Customer Support

SEO Analysis

A80/100

hostnet.nlhostnet.nl

Domeinnaam, hosting, website, e-mail, VPS en SSL | Hostnet

Bij Hostnet vind je alles voor jouw online succes: domeinnaam, hosting, website, e-mail, VPS en SSL. En je kunt rekenen op de beste service, 7 dagen per week.

Title Length58 chars

Recommended: 50-60 chars

Description Length158 chars

Recommended: 120-160 chars

Issues (1)

• Many images missing alt text (15/23)

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

971 URLs

robots.txt

15 rules

Sitemap reference found

Sponsored

Security Score

61%Fair

Interactive

HTTPS

No WAF

378d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

27.01.2026

Valid Until

26.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

*.hostnet.nlhostnet.nl

SHA-256 Fingerprint

9C:8E:42:14:E9:8B:FB:07:A4:66:AE:50:4D:16:A0:89:33:29:79:17...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

cache-control

🟡 19 Hours(max-age=68846)

content-encoding

📦 Gzip(gzip)

content-length

31252

content-type

text/html;charset=utf-8

date

Fri, 13 Feb 2026 03:52:34 GMT

expires

Fri, 13 Feb 2026 23:00:00 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mailfilter.hostnet.nl

Domain Information

hostnet.nl

Domain Age

27y 1m

Created

05.01.1999

Last Updated

31.05.2023

Registrar

Hostnet B.V.

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

Typography & Readability

Roboto

83/100

Readability

/30

32/40

14px · LH 1.64

Hierarchy

/20

21/25

2.14x ratio

WCAG

/25

15/15

Contrast: undefined

Performance

/25

20/20

System fonts

Heading Font

Roboto

Sans30px

Body Font

Roboto

Sans14px

Contrast Ratio

Reading Comfort

~39 CPL

Needs attention

30px

21px

18px

14px

⚠️ Small text: 14px may be hard to read on mobile. Consider 16px+.

✅ Optimal line spacing: 1.64 ratio ensures comfortable reading.

✅ 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.

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

Business & Marketing Stack

5 Tools Detected

Enterprise

Customer Support

LiveChatMid-Market

Live chat and helpdesk tools

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Privacy & Cookies

CookiebotMid-Market

Cookie consent and privacy compliance tools

Reviews & Social Proof

TrustpilotMid-Market

Customer reviews and testimonials

Sponsored

Scripts & Styles

21 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(11)atlas.hostnet.nl(4)consent.cookiebot.eu(2)sst.hostnet.nl(2)googletagmanager.com(1)

Website Identity

Facebook Instagram LinkedIn YouTube TikTok

Sponsored

Last analyzed: 13 Feb 2026 at 03:52

Historical Analysis & Change Tracking