Official documentation can't open

[sourav-18]

Official documentation can't open
https://socket.io/

[darrachequesne]

Hi! Is it up again for you?

Weirdly, Uptime robot did not detect any downtime:

And there seems to be no incident on Vercel: https://www.vercel-status.com/

[sourav-18]

Screencast.from.2026-06-11.13-31-49.webm

[darrachequesne]

Still not solved? Where are you from? Could you please provide an IP address that fails to load the website?

I think we'll have to escalate to the Vercel support...

[Sakibdevlekar]

Root Cause Analysis

Thank you @darrachequesne for the previous investigation. I've traced the issue further and identified that the problem is in a separate repository, not the main socket.io repo.

Key Finding

The actual source of the documentation site: socketio/socket.io-website
Not: socketio/socket.io (main repo)

---

📸 Evidence

Error Screenshot from https://socket.io:

This is a Docusaurus 2 configuration/deployment error, not a Socket.io library issue.

---

🔍 Technical Analysis

Repository Structure:

• socketio/socket.io = Node.js library & source code ❌ (Wrong repo for docs issue)
• socketio/socket.io-website = Docusaurus 2 website (Built at https://socket.io) ✅ (Correct repo)

File Verified:

• docusaurus.config.js exists in socketio/socket.io-website
• baseUrl: "/" is correctly configured for root domain
• Issue is likely: Build failure, deployment error, or runtime error

---

✅ Recommendation: Close This Issue

Since this is a documentation site issue, not a Socket.io library issue:

Suggested Action:

• ✅ Close this issue on socketio/socket.io
• ✅ Continue tracking on socketio/socket.io-website repo (Issue Expanded 'How to Use' in readme #539)

Reason:

• Documentation site issues ≠ Library code issues
• Different repositories, different maintainers
• Root cause is in website build/deployment infrastructure, not library code
• Keeps Socket.io repo focused on the library itself

Related Issue: 📌 socketio/socket.io-website#539

---

📚 References

• Website Repository: https://github.com/socketio/socket.io-website
• Website Issue: Official website failing to load properly (Docusaurus error) socket.io-website#539
• Error occurs at: https://socket.io/
• Docusaurus Config: docusaurus.config.js (baseUrl = "/" ✓ correct)
• Framework: Docusaurus 2

Next Step: Tracking detailed investigation in socketio/socket.io-website#539 repository.

Thank you for maintaining Socket.IO! 🙏

[sourav-18]

Hi @darrachequesne

I'm located in West Bengal, India.

[darrachequesne]

Update: it might be a DNS issue, which could explain the location-specific failures.

Does the fallback domain (https://socket-io-website.vercel.app/) work?

[kishanghosh090]

I'm also located in West Bengal, India .. I'll share exact location details ... this is my current ip 223.181.55.101 ...and this is my exact location lat, long -> 25.017147, 88.154572 ....socket.io is not reachable from here only I tried to ping from a vps in located in Mumbai, India its works fine from that but not from west bengal

[Sakibdevlekar]

Update: it might be a DNS issue, which could explain the location-specific failures.

Does the fallback domain (https://socket-io-website.vercel.app/) work?

Yes, it works!

The Vercel domain loads fine: https://socket-io-website.vercel.app/

But https://socket.io/ still doesn't load from my location (Pune, India).

[kishanghosh090]

https://socket-io-website.vercel.app/ ...yes vercel domain is working fine....I think some proxy issue happened

[darrachequesne]

yes vercel domain is working fine

OK, thanks.

The Vercel support asks to run the following script:

curl -s https://raw.githubusercontent.com/vercel-support/vercel-connect-debug/main/vercel-debug.sh | bash | tee vercel-debug.txt

Or on Windows:

Invoke-RestMethod -Uri https://raw.githubusercontent.com/vercel-support/vercel-connect-debug/main/vercel-debug.ps1 | Invoke-Expression | tee vercel-debug.txt

Could you please provide the vercel-debug.txt output so we can forward it to the support?