# Guides

Your home network is more complex than you think. Between smart speakers, security cameras, phones, laptops, and that IoT thermostat you forgot about — there's a lot going on. These guides help you understand what's happening and what to do about it.

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## Start with a question

Not sure where to begin? Pick the question that matches your situation:

**[What's on my network?](practical/whats-on-my-network.md)** — Find every connected device, identify mystery gadgets, and catch unauthorized access.

**[Is my internet actually slow?](practical/is-my-internet-slow.md)** — Test speed, latency, and bufferbloat. Find out if the problem is your WiFi, your ISP, or something else.

**[Am I being watched?](practical/am-i-being-watched.md)** — Check for DNS leaks, traffic interception, ARP spoofing, and VPN leaks.

**[Is my Wi-Fi secure?](practical/is-my-wifi-secure.md)** — Audit encryption, find rogue access points, and lock down your wireless network.

**[Keep my network healthy](practical/keep-my-network-healthy.md)** — Set up continuous monitoring, baselines, and alerts so you know the moment something changes.

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## Understand the networking

Not sure what ARP spoofing actually *is*? Wondering why your DNS matters? No networking degree required.

**Start with the basics:**

- [How Networks Work](concepts/how-networks-work.md) — IP addresses, subnets, routing, LAN vs WAN
- [ARP and MAC Addresses](concepts/arp-and-mac-addresses.md) — How devices find each other on a local network
- [Ports and Services](concepts/ports-and-services.md) — What port numbers mean and why they matter
- [DNS Explained](concepts/dns-explained.md) — How your computer turns names into addresses

**Security and privacy:**

- [TLS and Certificates](concepts/tls-and-certificates.md) — How HTTPS keeps your traffic private
- [WiFi Security](concepts/wifi-security.md) — WPA2 vs WPA3, evil twins, and what to watch for
- [Firewalls and NAT](concepts/firewalls-and-nat.md) — What your router's firewall actually does
- [VPN Fundamentals](concepts/vpn-fundamentals.md) — How VPNs work and what can go wrong

**Deep dives:**

- [DHCP How It Works](concepts/dhcp-how-it-works.md) — The protocol that hands out IP addresses
- [IPv6 Primer](concepts/ipv6-primer.md) — The next generation of IP addressing
- [Device Fingerprinting](concepts/device-fingerprinting.md) — How netglance identifies what your devices are
- [Network Performance](concepts/network-performance.md) — Latency, jitter, bufferbloat, and why speed tests lie

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## Making sense of results

Ran a scan and not sure what you're looking at?

- [Reading Reports](interpreting-results/reading-reports.md) — What pass/warn/fail/error mean, how health scores work
- [When to Worry](interpreting-results/when-to-worry.md) — Which findings are urgent vs informational vs noise
- [Common Findings](interpreting-results/common-findings.md) — The 20 issues you'll see most often, and whether they matter
- [Remediation Playbook](interpreting-results/remediation-playbook.md) — Step-by-step fixes for common issues

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Ready to use the tools? Head to the **[Docs](../reference/index.md)** for install instructions, command reference, and deployment guides.
