Troubleshooting Slowness and Performance Issues for Zoho CRM: A Guide for Zoho Partners

Troubleshooting Slowness and Performance Issues for Zoho CRM: A Guide for Zoho Partners

At Zoho, our goal has always been to ensure that Zoho CRM and our services at large remain fast, reliable, and responsive so that users can stay productive. By “users,” we mean not just customers, but also our partners and our own customer and partner-facing teams working across our global offices. This continues to be a top priority for us.

That said, the responsiveness of Zoho CRM depends not only on the application itself but also on the underlying network. To strengthen this, we now have a dedicated Data Center Operations (DC Ops) team focused on data center expansion, upgrades, compliance, and smooth operations across every region.
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When latency or performance issues occur, it is critical that our DC Ops teams have the right information to troubleshoot and resolve problems quickly. The purpose of this note is to raise awareness on what information is required to identify and troubleshoot such issues, and to provide partners with guidance on the steps to take before escalating to support or posting generic queries on Partner Connect.
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​Information to Collect Before Reporting Zoho CRM Latency Issues

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To help our DC Ops and Support teams quickly identify and resolve performance issues, please ensure you capture the following details before raising a ticket or posting on Partner Connect:

How to Share Network Diagnostics for Zoho CRM Performance Issues


To help us effectively investigate and resolve performance or slowness issues you're experiencing in Zoho CRM or other Zoho services, we request the following key information. These details will enable our technical teams to analyze your network path, identify latency points, and determine whether the issue is localized or broader in nature.

1. Required TraceRoutes and Ping Results:


Please run a TraceRoute to the following domains and share the results with us:


For US DC:


DomainPurpose
accounts.zoho.comZoho Authentication Server
crm.zoho.comZoho CRM Service Domain
static.zohocdn.comStatic Assets Delivery
h2js.zohocdn.comJavaScript File Host
js.zohocdn.comJavaScript Delivery Endpoint
gsite.zohocdn.comZoho Global Content Delivery Network
css.zohostatic.comStylesheets and Static Styling Content


For EU DC:


Domain
Purpose
accounts.zoho.eu
Zoho Authentication Server
crm.zoho.eu
Zoho CRM Service Domain
static.zohocdn.com
Static Assets Delivery
h2js.zohocdn.com
JavaScript File Host
js.zohocdn.com
JavaScript Delivery Endpoint
gsite.zohocdn.eu
Zoho Global Content Delivery Network
css.zohostatic.eu
Stylesheets and Static Styling Content

For IN DC:


Domain
Purpose
accounts.zoho.in
Zoho Authentication Server
crm.zoho.in
Zoho CRM Service Domain
static.zohocdn.com
Static Assets Delivery
h2js.zohocdn.com
JavaScript File Host
js.zohocdn.com
JavaScript Delivery Endpoint
gsite.zohocdn.in
Zoho Global Content Delivery Network
css.zohostatic.in
Stylesheets and Static Styling Content

For AU DC:


Domain
Purpose
accounts.zoho.com.au
Zoho Authentication Server
crm.zoho.com.au
Zoho CRM Service Domain
static.zohocdn.com
Static Assets Delivery
h2js.zohocdn.com
JavaScript File Host
js.zohocdn.com
JavaScript Delivery Endpoint
gsite.zohocdn.com.au
Zoho Global Content Delivery Network
css.zohostatic.com.au
Stylesheets and Static Styling Content


Please use the above domain URLs for the US, EU, IN, and AU data centers only.

For all other data centers, replace the endpoint of the URL with the corresponding domain path as shown in the table below.


Data Center Endpoint Reference

Data Center
Domain Path / Example
US (Default)
EU
IN
AU
JP (Japan)
CA (Canada)
SA (Saudi Arabia)

Example of URL Conversion


If the default URL is:

🇯🇵 For Japan DC, update to:

🇨🇦 For Canada DC, update to:


IdeaTip: You can use tracert on Windows or traceroute on Mac/Linux to generate this data. To know more about TraceRoute Instructions, please refer to this LINK!

Please run a ping test with 100 packets from the user's machine using the following commands:
  • For Mac/Linux users:
    ping zoho.eu -c 100
    ping 8.8.8.8 -c 100

  • For Windows users:
    ping zoho.eu -n 100

2. Additional Information Needed


Please provide the following supporting information to help narrow down the cause of the issue:

>> Nature of the Slowness  
  • Is the slowness limited to a single user or is it affecting the entire organization?

>> Type of Action Affected  
  • Is the issue occurring during a specific action (e.g., saving a record, loading Canvas view) or is it affecting all actions in the application?

>> Network & Access Details  
  • Public IP address from which the user is accessing Zoho.
  • ISP (Internet Service Provider) details, including:
    • Primary ISP
    • Alternate ISP (if applicable)
  • Location (City/Country) from where Zoho is being accessed.

>> Timeline  
  • Date and time when the issue was first noticed or started recurring.

>> Environment Details  
  • Is the user accessing Zoho through:
    • A VPN?
    • A proxy network?
    • Any browser extensions or antivirus software that may affect performance?

3. Why This Matters


Sharing this information helps us:
  • Identify potential network routing issues or ISP-specific delays
  • Detect regional anomalies or CDN-level distribution problems
  • Eliminate client-side variables like extensions or proxies
  • Work toward a faster and more accurate resolution

We appreciate your cooperation in providing the necessary insights and detailed information.


Please share all the above information collectively with partner-support@zohocorp.com.

Likewise, for all Europe & UK partners, please share the above information collectively with partner-support@eu.zohocorp.com.