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Basic CDN Checks for Website Performance Issues

Learn essential checks for diagnosing website performance issues related to the CDN and ensure optimal site functionality.

·2 min read·2 views·View Oracle Docs

Problems with your website’s performance don’t necessarily indicate a failing Content Delivery Network (CDN). A common concern like slowness may arise from various factors, and website downtime could point to DNS issues rather than CDN failures.

To diagnose if your CDN is functioning correctly, consider using the Akamai debug headers Chrome extension. This tool adds several HTTP headers to your requests and provides custom Pragma headers, which can be examined via the browser's developer tools.

How to Use Akamai Debug Headers

After installing the extension:

  1. Navigate to your site’s home page.
  2. Open the Network tab in developer tools.
  3. Look for the Response Headers section where you can find useful information about your CDN performance.

Ensure that the X-Check-Cacheable header is set to 'YES'. This indicates that the page is cached, confirming that your CDN is working as intended.

Common CDN Issues

If you experience performance problems despite using a CDN, consider the following:

  • Server response times might be affected by origin server issues.
  • Cache settings may not be configured optimally.
  • The CDN may not be distributing content effectively, leading to bottlenecks.

Key Takeaways

  • Diagnosing website performance issues requires checking for more than just CDN faults.
  • The Akamai debug headers extension is a valuable tool for CDN verification.
  • Proper caching settings are crucial for ensuring efficient CDN operation.

Frequently Asked Questions (4)

How can I verify if my CDN is functioning correctly using developer tools?
You can verify your CDN's functionality by using the Akamai debug headers Chrome extension. After installing, navigate to your site’s home page and open the Network tab in developer tools. Check the Response Headers section to confirm the X-Check-Cacheable header is set to 'YES', indicating the page is cached.
What are potential causes of website slowness if the CDN is not the issue?
Slowness can arise from various factors such as server response times being affected by origin server issues or suboptimal cache settings. It's important to check these elements alongside CDN performance.
Is it enough to only use a CDN to ensure optimal website performance?
No, while a CDN is important for distributing content efficiently, other factors such as server response times and correct cache settings also significantly impact website performance.
Does diagnosing CDN performance issues involve checking DNS settings?
Yes, website downtime could indicate DNS issues rather than CDN failures. It's important to consider this alongside other potential causes of performance problems.
Source: Basic Checks — Oracle NetSuite Help Center. This article was generated from official Oracle documentation and enriched with additional context and best practices.

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