A Google FCM service IP optimization tool that finds the best performing IPs and assigns them to FCM domains.
This tool optimizes Google Firebase Cloud Messaging (FCM) connectivity by testing and selecting the fastest IP addresses for FCM domains. It generates configuration files compatible with AdGuardHome or /etc/hosts for improved messaging performance.
- FCM domain optimization
- AdGuardHome configuration output
/etc/hostsfile generation
| Option | Description |
|---|---|
-4 |
IPv4 only mode |
-host |
Output in hosts file format instead of AdGuardHome format |
-h |
Show help message |
# Default run (AdGuard format)
curl -fsSL https://raw.githubusercontent.com/vrichv/fcm-ip/main/mtalk.sh | bash
# IPv4 only mode
curl -fsSL https://raw.githubusercontent.com/vrichv/fcm-ip/main/mtalk.sh | bash -s -- -4
> ./mtalk.sh
Testing IPv4 addresses...
Testing IPv6 addresses...
=== For AdGuardHome ===
||mtalk.google.com^$dnsrewrite=2404:6800:4003:c1a::bc
||mtalk4.google.com^$dnsrewrite=74.125.200.188
||alt1-mtalk.google.com^$dnsrewrite=2404:6800:4008:c15::bc
||alt2-mtalk.google.com^$dnsrewrite=142.250.0.188
||alt3-mtalk.google.com^$dnsrewrite=2607:f8b0:400e:c0c::bc
||alt4-mtalk.google.com^$dnsrewrite=74.125.71.188
||alt5-mtalk.google.com^$dnsrewrite=2a00:1450:400c:c0a::bc
||alt6-mtalk.google.com^$dnsrewrite=74.125.200.188
||alt7-mtalk.google.com^$dnsrewrite=2404:6800:4003:c04::bc
||alt8-mtalk.google.com^$dnsrewrite=74.125.71.188
=== Final Ping Results (sorted by domain priority) ===
mtalk.google.com 2404:6800:4003:c1a::bc (avg: 55.186ms)
mtalk4.google.com 74.125.200.188 (avg: 209.520ms)
alt1-mtalk.google.com 2404:6800:4008:c15::bc (avg: 81.463ms)
alt2-mtalk.google.com 142.250.0.188 (avg: 318.822ms)
alt3-mtalk.google.com 2607:f8b0:400e:c0c::bc (avg: 191.544ms)
alt4-mtalk.google.com 74.125.71.188 (avg: 244.042ms)
alt5-mtalk.google.com 2a00:1450:400c:c0a::bc (avg: 210.587ms)
alt6-mtalk.google.com 74.125.200.188 (avg: 209.520ms)
alt7-mtalk.google.com 2404:6800:4003:c04::bc (avg: 57.608ms)
alt8-mtalk.google.com 74.125.71.188 (avg: 244.042ms)
# IPv4 only with hosts format
> ./mtalk.sh -4 -host
# Show help
> ./mtalk.sh -hThe tool generates optimized configurations for:
- AdGuardHome: DNS rewrites for FCM domains
- Hosts file: Direct IP mappings for
/etc/hosts
This project is open source and available under the MIT License.