---
title: "Lemwatch guides — visual explainers for monitoring & web infra"
description: "Plain-English visual guides explaining how website monitoring, DNS, SSL, Core Web Vitals, and SEO health checks actually work under the hood."
canonical: "https://lemwatch.com/guides"
source: "https://lemwatch.com"
---

# Visual guides for website monitoring and web infrastructure

> Short, illustrated explainers covering how the pieces of website monitoring fit together — written for the people who own the site, not for SREs.

## What these guides cover

 Short, illustrated explainers on how the moving parts of a website actually work: DNS resolution, TLS certificates and the handshake, Core Web Vitals and what makes each metric move, HTTP status codes, crawling and indexing, and how monitoring checks are run and confirmed.

## Who they're for

 Written for people who own or manage a site rather than for SREs — enough depth to diagnose a real problem, no assumed background in networking. Every guide includes a diagram of the flow and a section on how that layer typically breaks.

## Where to start

 If something is broken right now, start with the guide for the layer that's failing. If you're setting monitoring up for the first time, the DNS and SSL guides cover the two things that most often take a site down without warning.



## Lemwatch at a glance

- What it is: website monitoring that checks uptime, page changes, SEO, security, SSL and speed in one tool.
- Free plan: 10 sites, no time limit, all check types.
- Pro: $19/mo, 50 sites, public API and webhooks.
- Agency: $59/mo, 150 sites, white-label status pages.
- Source: https://lemwatch.com/pricing (facts verified from the product's own plan limits).


## All 2 pages in this section

- [How DNS lookups work — a visual guide](https://lemwatch.com/guides/how-dns-works)
- [The website audit checklist](https://lemwatch.com/resources/website-audit-checklist)


## Related

- [Lemwatch pricing](https://lemwatch.com/pricing)