diff --git a/.github/CODE_OF_CONDUCT.md b/.github/CODE_OF_CONDUCT.md
index 548fd532..8a8a7e75 100644
--- a/.github/CODE_OF_CONDUCT.md
+++ b/.github/CODE_OF_CONDUCT.md
@@ -28,7 +28,7 @@ Decisions are recorded in the affected thread.
 
 ## Reporting
 
-For private reports — including suspected manipulation, harassment, or undisclosed conflicts of interest — email **conduct@openchainbench.com** or open a [private security advisory](https://github.com/OpenChainBench/OpenChainBench/security/advisories/new) (the same channel works for non-security disclosures).
+For private reports — including suspected manipulation, harassment, or undisclosed conflicts of interest — email **conduct@openchainbench.xyz** or open a [private security advisory](https://github.com/OpenChainBench/OpenChainBench/security/advisories/new) (the same channel works for non-security disclosures).
 
 We treat reporters' identities as confidential by default.
 
diff --git a/.github/SECURITY.md b/.github/SECURITY.md
index a26a94a7..b0f8bfb6 100644
--- a/.github/SECURITY.md
+++ b/.github/SECURITY.md
@@ -4,7 +4,7 @@
 
 Open a [private security advisory](https://github.com/OpenChainBench/OpenChainBench/security/advisories/new) on this repository. Do **not** open a public issue for a security report — the advisory mechanism keeps the disclosure private until a fix is in place.
 
-If GitHub is not an option, email **security@openchainbench.com** with:
+If GitHub is not an option, email **security@openchainbench.xyz** with:
 
 - A description of the vulnerability and the affected component (site, harness, infrastructure).
 - A reproducer or proof of concept.
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index add57897..df16bbfa 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -1,6 +1,6 @@
 # Contributing
 
-OpenChainBench is community-run. Anyone can submit a benchmark, fix a number, propose a methodology change. The web tutorial at [`/contribute`](https://openchainbench.com/contribute) walks through the steps; this file is the long-form reference. For a concrete end-to-end worked example, see [`docs/walkthrough.md`](./docs/walkthrough.md).
+OpenChainBench is community-run. Anyone can submit a benchmark, fix a number, propose a methodology change. The web tutorial at [`/contribute`](https://openchainbench.xyz/contribute) walks through the steps; this file is the long-form reference. For a concrete end-to-end worked example, see [`docs/walkthrough.md`](./docs/walkthrough.md).
 
 ## What lives where
 
diff --git a/README.md b/README.md
index 0f923210..cd2f8781 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # OpenChainBench
 
-> Open, reproducible benchmarks for crypto infrastructure — aggregators, bridges, RPCs, price feeds. Same metric, same conditions, every provider. Live at [openchainbench.com](https://openchainbench.com).
+> Open, reproducible benchmarks for crypto infrastructure — aggregators, bridges, RPCs, price feeds. Same metric, same conditions, every provider. Live at [openchainbench.xyz](https://openchainbench.xyz).
 
 OpenChainBench publishes one benchmark at a time, each one shipping with the script that produces its data. The goal is to make performance an observable property of crypto infra — measured in the open, by anyone who wants to add a provider or a metric.
 
@@ -53,7 +53,7 @@ OpenChainBench is a federation of independently-hosted harnesses connected by a
                                    │ HTTPS
                                    │ /api/v1/query
                                    ▼
-                          openchainbench.com
+                          openchainbench.xyz
                           (Next.js site on Vercel, ISR 60s)
 ```
 
@@ -139,7 +139,7 @@ You never share API keys or wallet keys with the project. Your harness runs with
 
 ## Links
 
-- Site — [openchainbench.com](https://openchainbench.com)
+- Site — [openchainbench.xyz](https://openchainbench.xyz)
 - Twitter — [@openchainbench](https://twitter.com/openchainbench)
 - GitHub — [OpenChainBench/OpenChainBench](https://github.com/OpenChainBench/OpenChainBench)
 
diff --git a/docs/walkthrough.md b/docs/walkthrough.md
index 177b8ba0..cb291782 100644
--- a/docs/walkthrough.md
+++ b/docs/walkthrough.md
@@ -2,7 +2,7 @@
 
 A concrete, end-to-end example of how a new benchmark gets onto the site. Written from the contributor's perspective, with the maintainer + automation actions called out so you can see what is yours to do and what happens around you.
 
-For the formal step-by-step reference, see [`/CONTRIBUTING.md`](../CONTRIBUTING.md) and the [`/contribute`](https://openchainbench.com/contribute) page. This document is the "what does a real contribution look like in practice" version.
+For the formal step-by-step reference, see [`/CONTRIBUTING.md`](../CONTRIBUTING.md) and the [`/contribute`](https://openchainbench.xyz/contribute) page. This document is the "what does a real contribution look like in practice" version.
 
 ## The scenario
 
@@ -59,7 +59,7 @@ methodology:
 source: https://github.com/OpenChainBench/OpenChainBench/tree/main/harnesses/wallet-portfolio-latency
 
 prometheus:
-  url: https://prom.openchainbench.com
+  url: https://prom.openchainbench.xyz
   window: 24h
 
 providers:
@@ -202,14 +202,14 @@ A maintainer pulls up the PR. They check four things:
 
 The maintainer comments "looks good", merges to `main`. The PR is auto-linked to the original issue, which moves to `In progress` on the roadmap.
 
-**Vercel rebuilds the site automatically.** The benchmark page appears at `https://openchainbench.com/benchmarks/wallet-portfolio-latency` immediately, but it's empty — the central Prometheus has not been told to scrape Alex's URL yet.
+**Vercel rebuilds the site automatically.** The benchmark page appears at `https://openchainbench.xyz/benchmarks/wallet-portfolio-latency` immediately, but it's empty — the central Prometheus has not been told to scrape Alex's URL yet.
 
 ## Phase 7 — Apply the scrape (Day 3, ~30 s)
 
 The maintainer triggers a Prometheus reload:
 
 ```bash
-curl -X POST https://prom.openchainbench.com/-/reload
+curl -X POST https://prom.openchainbench.xyz/-/reload
 ```
 
 Prometheus reloads its config file (which now has Alex's new scrape job), starts hitting `https://alex-portfolio-bench.fly.dev/metrics` every 15 s, and stores the data with `benchmark: wallet-portfolio-latency, host: alex` labels.
@@ -220,7 +220,7 @@ The site's ISR cache for `/benchmarks/wallet-portfolio-latency` expires (default
 
 Alex's benchmark is live. The roadmap card moves to `Live`. The maintainer pings the original issue:
 
-> "Live at https://openchainbench.com/benchmarks/wallet-portfolio-latency. Initial 24-hour run will smooth out — the page may look noisy until then."
+> "Live at https://openchainbench.xyz/benchmarks/wallet-portfolio-latency. Initial 24-hour run will smooth out — the page may look noisy until then."
 
 ## What Alex did vs what Alex didn't have to do
 
diff --git a/infrastructure/README.md b/infrastructure/README.md
index 79565163..6bc37c1e 100644
--- a/infrastructure/README.md
+++ b/infrastructure/README.md
@@ -28,7 +28,7 @@ OpenChainBench is a federation. **Each harness is hosted by whoever wrote it** 
                   └────────────────┬───────────────────┘
                                    │ HTTPS, /api/v1/query
                                    ▼
-                          openchainbench.com
+                          openchainbench.xyz
                           (Next.js site on Vercel)
 ```
 
diff --git a/src/app/benchmarks/[slug]/share-card/route.tsx b/src/app/benchmarks/[slug]/share-card/route.tsx
index e4a0d1b5..61b3f9bb 100644
--- a/src/app/benchmarks/[slug]/share-card/route.tsx
+++ b/src/app/benchmarks/[slug]/share-card/route.tsx
@@ -182,7 +182,7 @@ function CardFooter({
       }}
     >
       <span>
-        openchainbench.com · № {benchmark.number} · {benchmark.category}
+        openchainbench.xyz · № {benchmark.number} · {benchmark.category}
       </span>
       <span
         style={{
diff --git a/src/app/contribute/page.tsx b/src/app/contribute/page.tsx
index e16c4803..9e11706d 100644
--- a/src/app/contribute/page.tsx
+++ b/src/app/contribute/page.tsx
@@ -111,7 +111,7 @@ findings: []
 source: https://github.com/OpenChainBench/OpenChainBench/tree/main/harnesses/wallet-portfolio
 
 prometheus:
-  url: https://prom.openchainbench.com   # shared OpenChainBench Prometheus
+  url: https://prom.openchainbench.xyz   # shared OpenChainBench Prometheus
   window: 24h
 
 providers:
diff --git a/src/app/layout.tsx b/src/app/layout.tsx
index 34e2d1aa..dd7a3f4f 100644
--- a/src/app/layout.tsx
+++ b/src/app/layout.tsx
@@ -34,7 +34,7 @@ const jetbrainsMono = JetBrains_Mono({
 });
 
 export const metadata: Metadata = {
-  metadataBase: new URL("https://openchainbench.com"),
+  metadataBase: new URL("https://openchainbench.xyz"),
   title: {
     default: "OpenChainBench — Open benchmarks for crypto infrastructure",
     template: "%s · OpenChainBench",
@@ -45,7 +45,7 @@ export const metadata: Metadata = {
     title: "OpenChainBench",
     description: "Open, reproducible benchmarks for the multichain stack.",
     type: "website",
-    url: "https://openchainbench.com",
+    url: "https://openchainbench.xyz",
     siteName: "OpenChainBench",
   },
   twitter: {
diff --git a/src/app/opengraph-image.tsx b/src/app/opengraph-image.tsx
index 416fb8d1..c28aad78 100644
--- a/src/app/opengraph-image.tsx
+++ b/src/app/opengraph-image.tsx
@@ -88,7 +88,7 @@ export default function OG() {
             color: "#1c1a17",
           }}
         >
-          <span>openchainbench.com</span>
+          <span>openchainbench.xyz</span>
           <span>@openchainbench</span>
         </div>
       </div>
diff --git a/src/app/twitter-image.tsx b/src/app/twitter-image.tsx
index 17375f3a..3eacd4d0 100644
--- a/src/app/twitter-image.tsx
+++ b/src/app/twitter-image.tsx
@@ -71,7 +71,7 @@ export default function TwitterImage() {
             color: "#1c1a17",
           }}
         >
-          <span>openchainbench.com</span>
+          <span>openchainbench.xyz</span>
           <span>@openchainbench</span>
         </div>
       </div>
diff --git a/src/data/site.ts b/src/data/site.ts
index 97732e69..1705be08 100644
--- a/src/data/site.ts
+++ b/src/data/site.ts
@@ -1,6 +1,6 @@
 export const SITE = {
   name: "OpenChainBench",
-  url: "https://openchainbench.com",
+  url: "https://openchainbench.xyz",
   twitter: "@openchainbench",
   github: "https://github.com/OpenChainBench/OpenChainBench",
   description: