'/en/knowledge/what-is-an-ip-address.php',
'title' => 'What is an IP address?',
'desc' => 'How internet addressing works: IPv4, IPv6 and the differences explained.',
'icon' => 'ti-network',
'color' => 'var(--blue)',
],
[
'href' => '/en/knowledge/what-is-dns.php',
'title' => 'What is DNS?',
'desc' => 'The Domain Name System is the phone book of the internet – how it works and why it matters.',
'icon' => 'ti-search',
'color' => 'var(--purple)',
],
[
'href' => '/en/knowledge/what-is-ssl-tls.php',
'title' => 'What is SSL/TLS?',
'desc' => 'Web encryption: what HTTPS means and how SSL certificates protect your data.',
'icon' => 'ti-lock',
'color' => 'var(--green)',
],
[
'href' => '/en/knowledge/what-is-a-vpn.php',
'title' => 'What is a VPN?',
'desc' => 'Virtual Private Networks explained: how a VPN works, what it protects – and what it does not.',
'icon' => 'ti-shield',
'color' => 'var(--orange)',
],
[
'href' => '/en/knowledge/what-is-a-dns-leak.php',
'title' => 'What is a DNS Leak?',
'desc' => 'Why your VPN may not protect you as well as you think – and what you can do about it.',
'icon' => 'ti-shield-off',
'color' => 'var(--red)',
],
[
'href' => '/en/knowledge/what-is-webrtc.php',
'title' => 'What is WebRTC?',
'desc' => 'Browser technology for real-time communication – and why it can be a privacy risk.',
'icon' => 'ti-broadcast',
'color' => 'var(--blue-dim)',
],
[
'href' => '/en/knowledge/ipv4-vs-ipv6.php',
'title' => 'IPv4 vs IPv6 – The Difference',
'desc' => 'Why the internet is transitioning to IPv6, what differs from IPv4 and what it means for you.',
'icon' => 'ti-arrows-right-left',
'color' => 'var(--purple-dim)',
],
[
'href' => '/en/knowledge/what-is-an-asn.php',
'title' => 'What is an ASN?',
'desc' => 'Autonomous System Numbers: how global internet routing works and what an ASN tells you.',
'icon' => 'ti-topology-star',
'color' => 'var(--green)',
],
[
'href' => '/en/knowledge/what-is-a-proxy.php',
'title' => 'What is a Proxy?',
'desc' => 'Proxy servers explained: differences to VPNs, use cases and what a proxy really hides.',
'icon' => 'ti-arrows-exchange',
'color' => 'var(--orange)',
],
[
'href' => '/en/knowledge/osi-model.php',
'title' => 'The OSI Model Explained',
'desc' => 'The 7 layers of network communication – from physical transmission to the application layer.',
'icon' => 'ti-layers',
'color' => 'var(--blue)',
],
[
'href' => '/en/knowledge/tcp-vs-udp.php',
'title' => 'TCP vs UDP',
'desc' => 'When to use TCP, when UDP? The differences and use cases of both protocols.',
'icon' => 'ti-arrows-exchange',
'color' => 'var(--green)',
],
[
'href' => '/en/knowledge/router-vs-switch.php',
'title' => 'Router vs Switch',
'desc' => 'What does a router do, what does a switch do? Differences and use cases explained.',
'icon' => 'ti-router',
'color' => 'var(--purple)',
],
[
'href' => '/en/knowledge/what-is-dhcp.php',
'title' => 'What is DHCP?',
'desc' => 'DHCP explained: how IP addresses are automatically assigned and what the DORA process is.',
'icon' => 'ti-server',
'color' => 'var(--orange)',
],
[
'href' => '/en/knowledge/what-is-cloudflare.php',
'title' => 'What is Cloudflare?',
'desc' => 'CDN, DDoS protection, DNS and WAF – what Cloudflare does and why millions use it.',
'icon' => 'ti-cloud',
'color' => 'var(--orange)',
],
[
'href' => '/en/knowledge/renew-ssl-certificate.php',
'title' => 'Renew SSL Certificate',
'desc' => 'Step by step: Lets Encrypt, Certbot and commercial certificates.',
'icon' => 'ti-lock-check',
'color' => 'var(--green)',
],
[
'href' => '/en/knowledge/what-is-my-ip-address.php',
'title' => 'What is my IP address?',
'desc' => 'Everything about your public IP address and how to find it.',
'icon' => 'ti-network',
'color' => 'var(--blue)',
],
[
'href' => '/en/knowledge/what-is-ping.php',
'title' => 'What is Ping?',
'desc' => 'What does ping mean, how is it measured and what is a good value?',
'icon' => 'ti-activity',
'color' => 'var(--green)',
],
[
'href' => '/en/knowledge/what-is-a-port.php',
'title' => 'What is a Port?',
'desc' => 'Network ports explained: TCP/UDP ports and well-known port numbers.',
'icon' => 'ti-plug',
'color' => 'var(--blue)',
],
[
'href' => '/en/knowledge/what-is-a-cdn.php',
'title' => 'What is a CDN?',
'desc' => 'Content Delivery Networks explained – how they work and why they matter.',
'icon' => 'ti-topology-star',
'color' => 'var(--purple)',
],
[
'href' => '/en/knowledge/how-to-change-ip-address.php',
'title' => 'How to change your IP address',
'desc' => 'How to change your IP address: VPN, proxy and other methods explained.',
'icon' => 'ti-refresh',
'color' => 'var(--orange)',
],
[
'href' => '/en/knowledge/what-is-whois.php',
'title' => 'What is WHOIS?',
'desc' => 'WHOIS explained: how to query domain owners and registration data.',
'icon' => 'ti-id',
'color' => 'var(--blue)',
],
[
'href' => '/en/knowledge/http-status-codes.php',
'title' => 'HTTP Status Codes Explained',
'desc' => 'What do 200, 301, 404 and 500 mean? All important HTTP status codes clearly explained.',
'icon' => 'ti-code',
'color' => 'var(--blue)',
],
];
require_once __DIR__ . '/../../en/header.php';
?>