diff --git a/Wave/Controllers/SitemapController.cs b/Wave/Controllers/SitemapController.cs
new file mode 100644
index 0000000..134eec4
--- /dev/null
+++ b/Wave/Controllers/SitemapController.cs
@@ -0,0 +1,70 @@
+using System.Text;
+using System.Xml;
+using System.Xml.Linq;
+using Humanizer;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.OutputCaching;
+using Microsoft.EntityFrameworkCore;
+using Wave.Data;
+using static StackExchange.Redis.Role;
+
+namespace Wave.Controllers;
+
+[ApiController]
+public class SitemapController(ApplicationDbContext context) : ControllerBase {
+	private ApplicationDbContext Context { get; } = context;
+
+	[HttpGet("/sitemap.xml")]
+	[Produces("application/xml")]
+	[ResponseCache(Duration = 60*15, Location = ResponseCacheLocation.Any)]
+	[OutputCache(Duration = 60*15)]
+	public async Task GetSitemapAsync(CancellationToken cancellation) {
+		var host = new Uri($"https://{Request.Host}{Request.PathBase}", UriKind.Absolute);
+		var articles = await Context.Set<Article>().OrderBy(a => a.PublishDate).ToListAsync();
+
+		var document = new XDocument(new XElement("urlset")) {
+			Declaration = new XDeclaration("1.0", Encoding.UTF8.ToString(), null),
+		};
+
+		if (articles.Count > 0) {
+			document.Root.Add(CreateUrlElement(host, articles.Max(a => a.PublishDate).UtcDateTime, priority:1f));
+
+			foreach (var article in articles) {
+				document.Root.Add(CreateUrlElement(new Uri(host,
+					$"/{article.PublishDate.Year}/{article.PublishDate.Month:D2}/{article.PublishDate.Day:D2}/{Uri.EscapeDataString(article.Title.ToLowerInvariant()).Replace("-", "+").Replace("%20", "-")}"), article.LastModified?.UtcDateTime ?? article.PublishDate.UtcDateTime));
+			}
+		} else {
+			document.Root.Add(CreateUrlElement(host, priority:1f));
+		}
+		
+		Response.StatusCode = StatusCodes.Status200OK;
+		Response.ContentType = "application/xml; charset=utf-8";
+		await using var writer = XmlWriter.Create(Response.Body, new XmlWriterSettings {
+			Encoding = Encoding.UTF8,
+			Async = true
+		});
+		await document.SaveAsync(writer, cancellation);
+		await writer.FlushAsync();
+	}
+
+	private static XElement CreateUrlElement(Uri location, DateTime? lastModified = null, ChangeFrequencies changeFrequency = ChangeFrequencies.Unknown, float priority = 0.5f) {
+		var result = new XElement("url", new XElement("loc", location.AbsoluteUri));
+
+		if (lastModified is not null) result.Add(new XElement("lastmod", lastModified.Value.ToString("yyyy-MM-dd")));
+		if (changeFrequency is not ChangeFrequencies.Unknown) result.Add(new XElement("changefreq", changeFrequency.ToString().ToLower()));
+		if (Math.Abs(priority - 0.5f) > 0.05) result.Add(new XElement("priority", priority.ToString("F1")));
+
+		return result;
+	}
+
+	private enum ChangeFrequencies {
+		Unknown,
+		Never,
+		Always,
+		Hourly,
+		Daily,
+		Weekly,
+		Monthly,
+		Yearly
+	}
+}
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