diff --git a/CHANGELOG.md b/CHANGELOG.md
index 13c642f8..83123f8e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,8 @@
 - Fix tests that failed when `SOURCE_DATE_EPOCH` is set in the environment
 - Add a `skip_schema_validation` option to `parse_objects` to skip schema validation of input files ([bug 2076540](https://bugzilla.mozilla.org/show_bug.cgi?id=2076540))
 - Mark `test_logging` as requiring a web connection
+- BUGFIX: Ensure ALL_OBJECT_CHECKS actually run against the known items ([bug 2088071](https://bugzilla.mozilla.org/show_bug.cgi?id=2088071))
+- Reserve "tags" and "pings" as ping names. These cannot be used for custom pings
 
 ## 22.0.1
 
diff --git a/glean_parser/lint.py b/glean_parser/lint.py
index cafb5731..5ed0ba9f 100644
--- a/glean_parser/lint.py
+++ b/glean_parser/lint.py
@@ -641,11 +641,20 @@ def _lint_all_objects(
 ) -> List[GlinterNit]:
     nits: List[GlinterNit] = []
 
-    pings = objects.get("pings")
+    pings = {}
+    metrics = {}
+
+    for key, item in objects.items():
+        if key == "pings":
+            pings.update(item)
+        elif key == "tags":
+            pass
+        else:
+            metrics.update(item)
+
     if not pings:
         return []
 
-    metrics = objects.get("all_metrics")
     if not metrics:
         return []
 
diff --git a/glean_parser/pings.py b/glean_parser/pings.py
index 937bb48f..163ff52b 100644
--- a/glean_parser/pings.py
+++ b/glean_parser/pings.py
@@ -14,7 +14,17 @@
 from . import util
 
 
-RESERVED_PING_NAMES = ["baseline", "metrics", "events", "deletion-request", "default"]
+RESERVED_PING_NAMES = [
+    "baseline",
+    "metrics",
+    "events",
+    "deletion-request",
+    "default",
+    "server-deletion-request",
+    "tags",
+    "pings",
+    "health",
+]
 
 
 class Ping:
diff --git a/tests/data/reserved_pings.yamlx b/tests/data/reserved_pings.yamlx
new file mode 100644
index 00000000..cab3739c
--- /dev/null
+++ b/tests/data/reserved_pings.yamlx
@@ -0,0 +1,27 @@
+# Any copyright is dedicated to the Public Domain.
+# https://creativecommons.org/publicdomain/zero/1.0/
+
+---
+$schema: moz://mozilla.org/schemas/glean/pings/2-0-0
+
+# A list of all reserved ping names.
+# This is verified in a test to match the list of defined reserved pings.
+
+metrics: &common
+  description: A ping
+  include_client_id: true
+  bugs:
+    - https://example.com/bugs
+  data_reviews:
+    - https://example.com/reviews
+  notification_emails:
+    - CHANGE-ME@test-only.com
+
+baseline: *common
+events: *common
+deletion-request: *common
+default: *common
+server-deletion-request: *common
+tags: *common
+pings: *common
+health: *common
diff --git a/tests/data/unknown_ping_used.yaml b/tests/data/unknown_ping_used.yaml
index 66c98c95..75780f28 100644
--- a/tests/data/unknown_ping_used.yaml
+++ b/tests/data/unknown_ping_used.yaml
@@ -25,6 +25,8 @@ all_metrics:
     send_in_pings:
       - metrics
       - events
+    no_lint:
+      - METRIC_ON_EVENTS_LIFETIME
 
   non_existent_ping:
     <<: *defaults
diff --git a/tests/test_lint.py b/tests/test_lint.py
index f81fcccb..46f3786b 100644
--- a/tests/test_lint.py
+++ b/tests/test_lint.py
@@ -505,7 +505,7 @@ def test_unknown_pings_lint():
     assert len(errs) == 0
 
     nits = lint.lint_metrics(all_objects.value, parser_config={})
-    assert len(nits) == 2
+    assert len(nits) == 1
     assert nits[0].check_name == "UNKNOWN_PING_REFERENCED"
     assert nits[0].name == "all_metrics.non_existent_ping"
     assert "does-not-exist" in nits[0].msg
diff --git a/tests/test_parser.py b/tests/test_parser.py
index 7b9bec40..947100f8 100644
--- a/tests/test_parser.py
+++ b/tests/test_parser.py
@@ -12,6 +12,7 @@
 import pytest
 
 from glean_parser import metrics
+from glean_parser import pings
 from glean_parser import parser
 
 import util
@@ -1637,3 +1638,12 @@ def test_categories():
 
     errs = list(all_metrics)
     assert len(errs) == 0
+
+
+def test_reserved_pings():
+    all_metrics = parser.parse_objects(ROOT / "data" / "reserved_pings.yamlx")
+
+    errors = list(all_metrics)
+    assert len(errors) == len(pings.RESERVED_PING_NAMES)
+    for error in errors:
+        assert "Ping uses a reserved name" in error