diff --git a/docs/src/dns.md b/docs/src/dns.md
index 51f0e5d..53bd793 100644
--- a/docs/src/dns.md
+++ b/docs/src/dns.md
@@ -61,13 +61,25 @@ requires re-submitting the DS.
 
 ## ACME DNS-01
 
-A dedicated TSIG key (`acme_ddns`), scoped by `acl_acme` to `TXT` updates at or
-under `_acme-challenge.<zone>` on `ns1` only. Knot signs the record and transfers
-it to `ns2`, which never needs this key. Retrieve the client config with:
+Certificates are issued by `_acme-challenge` TXT updates that `ns1` accepts over
+TSIG, signs, and transfers to `ns2` (which never needs these keys). Each consumer
+gets its **own** key, scoped by an ACL to exactly the owner names it needs and
+attached only to the zone it lives in — so a leaked key can write nothing but its
+own challenges.
 
-```
-clan vars get ns1 dns-acme-tsig/acme.conf
-```
+- **`acme_ddns`** (`acl_acme`) — the general key, scoped to `TXT` at or under
+  `_acme-challenge.<zone>` and attached to every zone. Client config:
+  ```
+  clan vars get ns1 dns-acme-tsig/acme.conf
+  ```
+- **`acme_mx1`** (`acl_acme_mx1`) — held only by `mx1`, scoped to
+  `_acme-challenge.{mx1,mta-sts,mail}` and attached only to `cnx.email` (the mail
+  cert plus its MTA-STS and client-alias SANs). Secret shared via the
+  `dns-acme-mx1-secret` generator.
+- **`acme_web01`** (`acl_acme_web01`) — held only by `web01`, scoped to
+  `_acme-challenge` and attached only to `cnx.network` (where the wildcard
+  `*.cnx.network` challenge lands, at the apex). Secret shared via the
+  `dns-acme-web01-secret` generator.
 
 ## Runbook: stale secondary
 
diff --git a/docs/src/monitoring.md b/docs/src/monitoring.md
index 85873e9..f67f918 100644
--- a/docs/src/monitoring.md
+++ b/docs/src/monitoring.md
@@ -1,6 +1,7 @@
 # Monitoring
 
-Metrics and dashboards live on `control`, reachable only over the ZeroTier mesh.
+Metrics and logs live on `control` over the ZeroTier mesh; the Grafana dashboards
+are also published publicly through `web01` (see [Dashboards](#dashboards)).
 
 ## Collection
 
@@ -18,8 +19,8 @@ Metrics and dashboards live on `control`, reachable only over the ZeroTier mesh.
 ## Storage & scraping
 
 **VictoriaMetrics** on `control`, bound to `127.0.0.1:8428`, 180-day retention
-(`modules/monitoring/server.nix`). It scrapes `control` over loopback and `ns1`/
-`ns2` over the mesh.
+(`modules/monitoring/server.nix`). It scrapes `control` over loopback and
+`ns1`/`ns2`/`mx1`/`web01` over the mesh.
 
 > The scraper dials IPv4-only by default, so mesh (IPv6) targets need
 > `extraOptions = [ "-enableTCP6" ]`. Without it, ns1/ns2 are dropped with
@@ -31,8 +32,10 @@ Metrics and dashboards live on `control`, reachable only over the ZeroTier mesh.
 
 ## Dashboards
 
-**Grafana** on `control` (`:3000`), mesh-only, anonymous access disabled. The
-admin password is a clan var:
+**Grafana** on `control` (`:3000`), anonymous access disabled. Reachable directly
+over the mesh, and publicly at `https://grafana.cnx.network` via `web01`'s reverse
+proxy (TLS termination — see [Overview](./overview.md)). The admin password is a
+clan var:
 
 ```
 clan vars get control grafana-admin/password
@@ -46,6 +49,9 @@ there is picked up):
   outside-in DNS probes.
 - **CNX Backups** (`backups.json`) — borgbackup job health, time since the last
   run, and per-job state. See [Backups](./backups.md).
+- **CNX Uptime** (`uptime.json`) — per-host up/down status, current uptime,
+  availability over the selected window, and up/down history. Label-driven, so
+  every scraped host appears automatically.
 
 ## Logs
 
@@ -53,8 +59,8 @@ there is picked up):
 (`modules/monitoring/server.nix`). All three hosts ship journald to it via
 systemd's own `services.journald.upload` → the `/insert/journald` endpoint
 (`modules/monitoring/exporters.nix`); no extra agent. `control` uploads over
-loopback so its logs survive a mesh outage, `ns1`/`ns2` push over the mesh, and
-9428 is firewall-scoped to the mesh like everything else.
+loopback so its logs survive a mesh outage, the other hosts push over the mesh,
+and 9428 is firewall-scoped to the mesh like everything else.
 
 > Same IPv4-only default as the scraper: VictoriaLogs binds `0.0.0.0:9428` for a
 > bare `:9428`, so mesh (IPv6) pushes from ns1/ns2 are refused until you pass
diff --git a/docs/src/overview.md b/docs/src/overview.md
index c8297bc..fc4ba22 100644
--- a/docs/src/overview.md
+++ b/docs/src/overview.md
@@ -6,12 +6,13 @@ this book is built from `docs/` and served on `control` over the ZeroTier mesh.
 
 ## Machines
 
-| Machine   | Role                                  | Public IPv4      | Public IPv6             |
-| --------- | ------------------------------------- | ---------------- | ----------------------- |
-| `control` | ZeroTier controller, monitoring, docs | `77.42.68.181`   | `2a01:4f9:c013:e6d0::1` |
-| `ns1`     | Knot DNS **primary** (master)         | `46.224.170.206` | `2a01:4f8:c014:b5c5::1` |
-| `ns2`     | Knot DNS **secondary** (slave)        | `157.180.70.82`  | `2a01:4f9:c014:6d87::1` |
-| `mx1`     | Mail server (**MX** for cnx.email)    | `5.223.65.38`    | `2a01:4ff:2f0:1963::1`  |
+| Machine   | Role                                   | Public IPv4      | Public IPv6             |
+| --------- | -------------------------------------- | ---------------- | ----------------------- |
+| `control` | ZeroTier controller, monitoring, docs  | `77.42.68.181`   | `2a01:4f9:c013:e6d0::1` |
+| `ns1`     | Knot DNS **primary** (master)          | `46.224.170.206` | `2a01:4f8:c014:b5c5::1` |
+| `ns2`     | Knot DNS **secondary** (slave)         | `157.180.70.82`  | `2a01:4f9:c014:6d87::1` |
+| `mx1`     | Mail server (**MX** for cnx.email)     | `5.223.65.38`    | `2a01:4ff:2f0:1963::1`  |
+| `web01`   | Public reverse proxy (TLS termination) | `5.223.55.246`   | `2a01:4ff:2f0:2d8f::1`  |
 
 ## Access