Is Proton Mail down right now?

DownCheck executes real-time active probes against Proton Mail (proton.me) across three autonomous network vantage points — Direct HTTP, Cloudflare Edge AS13335, and 4 global DNS resolvers — to confirm whether Proton Mail is globally reachable or experiencing an outage. Check the live probe results at the top of this page for the current status.

What are common reasons Proton Mail goes down?

Common failure causes include: (1) Backend server overload returning HTTP 500 or 503 errors, (2) Gateway proxy timeouts causing HTTP 502 or 504, (3) DNS NXDOMAIN failures where authoritative nameservers drop records for proton.me, (4) CDN edge node failures returning Cloudflare Error 522 or 524, and (5) BGP route flapping causing packet loss across autonomous systems.

How does DownCheck test if Proton Mail is down?

Unlike complaint-counting tools, DownCheck sends actual synthetic network probes: (1) a direct HTTP/TLS request measuring response code and latency, (2) a Cloudflare Edge network probe via AS13335, and (3) four parallel DNS queries across Google, Cloudflare, Quad9, and OpenDNS resolvers. All three results are combined into a consensus verdict with a confidence percentage.

What should I do if Proton Mail is not loading?

Follow these steps: (1) Check the DownCheck probe report above. (2) Run nslookup proton.me 1.1.1.1 to verify DNS. (3) Clear browser cache with Ctrl+Shift+Delete. (4) Flush OS DNS cache with ipconfig /flushdns (Windows) or sudo dscacheutil -flushcache (macOS). (5) Test on a mobile hotspot to rule out ISP issues.

Why does DownCheck show a confidence percentage instead of just Up or Down?

No synthetic monitor can guarantee 100% certainty because CDN edge variance and regional ISP anomalies can affect one probe but not others. DownCheck calculates an honest mathematical confidence score based on how many of its three independent probes succeeded and whether results are consistent. A 90%+ score means the service is almost certainly operational.

Where can I find the official Proton Mail status page?

For authoritative incident announcements and scheduled maintenance, visit the official Proton Mail website at https://proton.me or their verified support and status channels. DownCheck provides independent third-party monitoring — it does not represent official statements from Proton Mail or its parent organization.

How often does DownCheck check Proton Mail?

DownCheck automatically polls Proton Mail every 5 minutes as part of its background monitoring cycle. Additionally, when you visit this page a fresh on-demand live check is triggered immediately, giving you the most current status in real time.

Is Proton Mail Down? Live Status, Outage Reports & Network Health

Q: Is Proton Mail down for everyone or just me?

If all DownCheck probes return successful 200 HTTP responses and valid DNS resolution from Google (8.8.8.8), Cloudflare (1.1.1.1), Quad9 (9.9.9.9), and OpenDNS, then Proton Mail servers are operational globally — the problem is on your end. If probes fail, Proton Mail is down for everyone.

Technical Profile

Proton Mail System & Network Specifications

Technical connectivity baseline and operational attributes for Proton Mail (proton.me) verified across DownCheck active multi-network infrastructure.

Primary Entity Proton Mail

Canonical Domain proton.me

Topical Category Encrypted Email & Privacy Service

Operating Organization Proton AG

Monitored Protocols HTTPS (TLS 1.3 / 1.2), HTTP/2, DNS (53)

Verification Probes Direct HTTP + Cloudflare AS13335 + 4 DNS

Monitoring Cadence 5-minute polling + on-demand live testing

Consensus Nodes Google, Cloudflare, Quad9, OpenDNS

Diagnostic Matrix

Common Proton Mail Outage Symptoms & Error Codes

When Proton Mail encounters server-side failures or routing disruptions, clients typically observe these protocol error codes:

Error Code / Signal	Root Cause	Diagnostic Meaning
`HTTP 500 / 503`	Backend Cluster Overload	Proton Mail origin application servers are crashing, overloaded, or undergoing maintenance.
`HTTP 502 / 504`	Gateway Proxy Timeout	Edge reverse proxies cannot establish a TCP handshake with upstream origin servers in time.
`DNS NXDOMAIN`	Authoritative DNS Drop	Authoritative nameservers for `proton.me` fail to return valid A/AAAA IP records.
`Connection Timed Out`	Network Route Packet Loss	TCP SYN packets to proton.me are dropped by autonomous system firewalls or BGP route flapping.
`HTTP 429 Too Many Requests`	Rate Limit / Anti-Abuse	Your public IP address or corporate NAT gateway has exceeded API / request throughput limits.

Troubleshooting Guide

Systematic Resolution Protocol for Proton Mail

If DownCheck multi-network probes confirm Proton Mail is operational globally but your local client cannot connect, execute these steps:

1

Review Multi-Network Consensus

Check the live probe cards above. If all independent nodes report Up with 90%+ confidence, the outage is isolated to your local environment or ISP.

2

Verify DNS Resolution via Public Resolver

Execute nslookup proton.me 1.1.1.1. If Cloudflare resolves but your default ISP DNS fails, your ISP is serving stale or corrupted DNS cache.

3

Purge Browser Cache & Active Sockets

Clear browser cache and cookies (Ctrl+Shift+Delete or Cmd+Shift+Delete) to clear poisoned session cookies and stale SSL session resumption tickets.

4

Flush OS Resolver Cache

Run ipconfig /flushdns (Windows) or sudo dscacheutil -flushcache (macOS) in terminal to purge local DNS lookup cache.

5

Test Alternative Network Gateway

Switch from your local Wi-Fi to cellular mobile hotspot or toggle off active VPN tunnels to bypass regional autonomous routing congestion.

FAQ Knowledge Base

Frequently Asked Questions About Proton Mail

Is Proton Mail down for everyone or just me?

DownCheck continuously measures proton.me from three independent autonomous networks. When all probes return status 200 OK and healthy DNS resolution, Proton Mail is fully operational across the global internet. If your device cannot connect while our probes succeed, the issue resides within your local device, router, or local ISP.

How does DownCheck test Proton Mail?

Unlike complaint-counting tools, DownCheck sends actual synthetic network requests across multiple networks: (1) a direct HTTP/TLS request measuring response latency and SSL validity, (2) a Cloudflare Edge probe via AS13335, and (3) four parallel DNS queries across Google, Cloudflare, Quad9, and OpenDNS.

Why does DownCheck report 90% or 97% confidence instead of 100%?

In network engineering, no third-party synthetic monitor can guarantee absolute 100% certainty due to Content Delivery Network (CDN) edge variance and regional ISP anomalies. DownCheck calculates honest mathematical confidence based on probe consensus.

Where can I check official status updates for Proton Mail?

For authoritative administrative announcements and scheduled maintenance schedules, visit the official Proton Mail website (proton.me) or their verified support channels.

Topical Ecosystem

Related Encrypted Email & Privacy Service Platforms

Monitor real-time status across topically related platforms and services in the same ecosystem:

Is Proton Mail down?

Telemetry Check History

Quick Troubleshooting Checklist