diff --git a/README.md b/README.md
index 9ccc482f..fd629f70 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 Montytest is a fishtest derivative: https://github.com/official-stockfish/fishtest
 
 Montytest is a distributed task queue for testing chess engines. The main instance
-for testing the chess engine [Monty](https://github.com/official-monty/Monty) is at this web page https://montychess.org
+for testing the chess engine [Monty](https://github.com/official-monty/Monty) is at this web page https://tests.montychess.org
 
 Developers submit patches with new ideas and improvements, CPU contributors install a montytest worker on their computers to play some chess games in the background to help the developers testing the patches.
 
diff --git a/server/montytest/api.py b/server/montytest/api.py
index 5467534c..89d3a0d1 100644
--- a/server/montytest/api.py
+++ b/server/montytest/api.py
@@ -34,7 +34,7 @@
 according to the route/URL mapping defined in `__init__.py`.
 """
 
-WORKER_VERSION = 25
+WORKER_VERSION = 26
 
 
 @exception_view_config(HTTPException)
@@ -665,7 +665,9 @@ def download_nn(self):
         else:
             self.request.rundb.increment_nn_downloads(self.request.matchdict["id"])
 
-        return HTTPFound("https://montychess.org/nn/" + self.request.matchdict["id"])
+        return HTTPFound(
+            "https://tests.montychess.org/nn/" + self.request.matchdict["id"]
+        )
 
 
 class InternalApi(GenericApi):
diff --git a/server/montytest/rundb.py b/server/montytest/rundb.py
index 9b7a2c24..0600c50f 100644
--- a/server/montytest/rundb.py
+++ b/server/montytest/rundb.py
@@ -880,7 +880,7 @@ def scavenge_dead_tasks(self):
         for task_id, run in dead_tasks:
             task = run["tasks"][task_id]
             print(
-                "dead task: run: https://montychess.org/tests/view/{} task_id: {} worker: {}".format(
+                "dead task: run: https://tests.montychess.org/tests/view/{} task_id: {} worker: {}".format(
                     run["_id"], task_id, worker_name(task["worker_info"])
                 ),
                 flush=True,
@@ -1574,7 +1574,7 @@ def failed_task(self, run_id, task_id, message="Unknown reason"):
         self.handle_crash_or_time(run, task_id)
         self.buffer(run, False)
         print(
-            "Failed_task: failure for: https://montychess.org/tests/view/{}, "
+            "Failed_task: failure for: https://tests.montychess.org/tests/view/{}, "
             "task_id: {}, worker: {}, reason: '{}'".format(
                 run_id, task_id, worker_name(task["worker_info"]), message
             ),
diff --git a/server/montytest/static/js/application.js b/server/montytest/static/js/application.js
index a2015e00..0d65513b 100644
--- a/server/montytest/static/js/application.js
+++ b/server/montytest/static/js/application.js
@@ -150,7 +150,7 @@ function notify(title, body, link, fallback) {
     const notification = new Notification(title, {
       body: body,
       requireInteraction: true,
-      icon: "https://montychess.org/img/monty.png",
+      icon: "https://tests.montychess.org/img/monty.png",
     });
     notification.onclick = () => {
       window.open(link, "_blank");
diff --git a/server/montytest/templates/base.mak b/server/montytest/templates/base.mak
index 1ab81678..0a764510 100644
--- a/server/montytest/templates/base.mak
+++ b/server/montytest/templates/base.mak
@@ -341,7 +341,7 @@
                   <ul class="list-unstyled fw-normal small">
                     <li>
                       <a
-                        href="https://montychess.org/download/"
+                        href="https://tests.montychess.org/download/"
                         target="_blank"
                         rel="noopener"
                         class="links-link rounded release"
@@ -359,7 +359,7 @@
                     </li>
                     <li>
                       <a
-                        href="https://montychess.org/get-involved/"
+                        href="https://tests.montychess.org/get-involved/"
                         target="_blank"
                         rel="noopener"
                         class="links-link rounded get-involved"
diff --git a/server/montytest/templates/sprt_calc.mak b/server/montytest/templates/sprt_calc.mak
index 70d537f8..f542cbf8 100644
--- a/server/montytest/templates/sprt_calc.mak
+++ b/server/montytest/templates/sprt_calc.mak
@@ -119,13 +119,13 @@
       <em>live_elo page</em>
       of a test with typical URL
       <a
-        href="https://montychess.org/tests/live_elo/666cac63746a4248d2b64a4d"
-        >https://montychess.org/tests/live_elo/666cac63746a4248d2b64a4d</a
+        href="https://tests.montychess.org/tests/live_elo/666cac63746a4248d2b64a4d"
+        >https://tests.montychess.org/tests/live_elo/666cac63746a4248d2b64a4d</a
       >
       or the <em>raw statistics page</em> with typical URL
       <a
-        href="http://montychess.org/tests/stats/666cac63746a4248d2b64a4d"
-        >http://montychess.org/tests/stats/666cac63746a4248d2b64a4d</a
+        href="http://tests.montychess.org/tests/stats/666cac63746a4248d2b64a4d"
+        >http://tests.montychess.org/tests/stats/666cac63746a4248d2b64a4d</a
       >.
     </li>
     <li>
diff --git a/server/montytest/util.py b/server/montytest/util.py
index 84cb2ea0..a3169fa3 100644
--- a/server/montytest/util.py
+++ b/server/montytest/util.py
@@ -13,7 +13,7 @@
 from email_validator import EmailNotValidError, caching_resolver, validate_email
 from zxcvbn import zxcvbn
 
-monty_URL = "https://montychess.org/tests/view/"
+monty_URL = "https://tests.montychess.org/tests/view/"
 
 
 class GeneratorAsFileReader:
diff --git a/server/utils/clone_fish.py b/server/utils/clone_fish.py
index e867a960..a1166141 100644
--- a/server/utils/clone_fish.py
+++ b/server/utils/clone_fish.py
@@ -7,7 +7,7 @@
 from pymongo import ASCENDING, MongoClient
 
 # monty_host = 'http://localhost:6543'
-monty_host = "http://149.202.73.158/"  # 'http://montychess.org'
+monty_host = "http://130.250.185.45/"  # 'http://tests.montychess.org'
 
 conn = MongoClient("localhost")
 
diff --git a/worker/games.py b/worker/games.py
index 55cf9e52..7679f89b 100644
--- a/worker/games.py
+++ b/worker/games.py
@@ -1253,7 +1253,7 @@ def make_player(arg):
                 "penta=true",
             ]
             + pgnout
-            + ["-site", "https://montychess.org/tests/view/" + run["_id"]]
+            + ["-site", "https://tests.montychess.org/tests/view/" + run["_id"]]
             + [
                 "-event",
                 "Batch {}: {} vs {}".format(
diff --git a/worker/sri.txt b/worker/sri.txt
index 08ac2c01..3bb8d600 100644
--- a/worker/sri.txt
+++ b/worker/sri.txt
@@ -1 +1 @@
-{"__version": 25, "updater.py": "gSJX/HbsPwsZnUZaFbAgF0zwWPWXv+LEw9jBhJkxFOrCH9CZS0+4U4nE2fJdeNze", "worker.py": "fHEii2XAK7THu9srxn+XOwp5pJGShe4Nz2uJFl7npFD5P+cfKyZM5Du22kmA1KV+", "games.py": "GWKDCJDHcqL4VcGTIYp/Q0Elf7H/wiHa0SB9I+EfyVgOWyaBl6SnlAhaPAogF3SH"}
+{"__version": 26, "updater.py": "gSJX/HbsPwsZnUZaFbAgF0zwWPWXv+LEw9jBhJkxFOrCH9CZS0+4U4nE2fJdeNze", "worker.py": "wTksP/uDhuFO81EOkwIDGWiTLbphR2d+wyqsCWBvylN5Xwm5UJOc3MFDW6coRfjh", "games.py": "xzUQOXluwXhfOZf4w0VsoPDR4/VgHYr/bkwt+dgJEM+zReVBM3B6+AlxJxVOfk59"}
diff --git a/worker/worker.py b/worker/worker.py
index 9eee05b9..f540cb47 100644
--- a/worker/worker.py
+++ b/worker/worker.py
@@ -69,7 +69,7 @@
 MIN_CARGO_MAJOR = 1
 MIN_CARGO_MINOR = 77
 
-WORKER_VERSION = 25
+WORKER_VERSION = 26
 FILE_LIST = ["updater.py", "worker.py", "games.py"]
 HTTP_TIMEOUT = 30.0
 INITIAL_RETRY_TIME = 15.0
@@ -110,7 +110,7 @@
 Apis used by the worker
 =======================
 
-<montytest>     = https://montychess.org
+<montytest>     = https://tests.montychess.org
 <github>       = https://api.github.com
 <github-books> = <github>/repos/official-monty/books
 
@@ -652,7 +652,7 @@ def setup_parameters(worker_dir):
         ("login", "username", "", str, None),
         ("login", "password", "", str, None),
         ("parameters", "protocol", "https", ["http", "https"], None),
-        ("parameters", "host", "montychess.org", str, None),
+        ("parameters", "host", "tests.montychess.org", str, None),
         ("parameters", "port", "443", int, None),
         (
             "parameters",