diff --git a/package-lock.json b/package-lock.json
index 042fcc3a..2154ca04 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15,6 +15,7 @@
         "commander": "^14.0.3",
         "js-yaml": "^4.1.0",
         "turndown": "^7.2.2",
+        "undici": "^7.24.5",
         "ws": "^8.18.0"
       },
       "bin": {
@@ -3514,6 +3515,15 @@
         "node": ">=14.17"
       }
     },
+    "node_modules/undici": {
+      "version": "7.24.5",
+      "resolved": "https://registry.npmmirror.com/undici/-/undici-7.24.5.tgz",
+      "integrity": "sha512-3IWdCpjgxp15CbJnsi/Y9TCDE7HWVN19j1hmzVhoAkY/+CJx449tVxT5wZc1Gwg8J+P0LWvzlBzxYRnHJ+1i7Q==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=20.18.1"
+      }
+    },
     "node_modules/undici-types": {
       "version": "6.21.0",
       "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
diff --git a/package.json b/package.json
index 18faef5e..a62f5568 100644
--- a/package.json
+++ b/package.json
@@ -55,6 +55,7 @@
     "commander": "^14.0.3",
     "js-yaml": "^4.1.0",
     "turndown": "^7.2.2",
+    "undici": "^7.24.5",
     "ws": "^8.18.0"
   },
   "devDependencies": {
diff --git a/src/pipeline/steps/fetch.ts b/src/pipeline/steps/fetch.ts
index edecda63..c0df217c 100644
--- a/src/pipeline/steps/fetch.ts
+++ b/src/pipeline/steps/fetch.ts
@@ -8,8 +8,17 @@ import type { IPage } from '../../types.js';
 import { render } from '../template.js';
 
 import { isRecord, mapConcurrent } from '../../utils.js';
-
-
+import { ProxyAgent, fetch as undiciFetch } from 'undici';
+
+/** Returns a fetch function that routes through the system proxy if configured. */
+function getProxyFetch(): typeof fetch {
+  const proxyUrl = process.env.HTTPS_PROXY ?? process.env.https_proxy
+    ?? process.env.HTTP_PROXY ?? process.env.http_proxy
+    ?? process.env.ALL_PROXY ?? process.env.all_proxy;
+  if (!proxyUrl) return fetch;
+  const dispatcher = new ProxyAgent(proxyUrl);
+  return (input, init) => undiciFetch(input as Parameters<typeof undiciFetch>[0], { ...(init as object), dispatcher }) as unknown as Promise<Response>;
+}
 
 /** Single URL fetch helper */
 async function fetchSingle(
@@ -29,7 +38,8 @@ async function fetchSingle(
   }
 
   if (page === null) {
-    const resp = await fetch(finalUrl, { method: method.toUpperCase(), headers: renderedHeaders });
+    const proxyFetch = getProxyFetch();
+    const resp = await proxyFetch(finalUrl, { method: method.toUpperCase(), headers: renderedHeaders });
     if (!resp.ok) {
       throw new CliError('FETCH_ERROR', `HTTP ${resp.status} ${resp.statusText} from ${finalUrl}`);
     }