Cache Analytics

Learn how to measure CDN cache performance and analyze HIT/MISS trends using the Cache Analytics dashboard.

The Cache Analytics dashboard helps you understand how efficiently your CDN serves cached content. It allows you to identify patterns in HIT and MISS responses, determine which content types consume the most bandwidth, and analyze caching behavior by device or referrer. By optimizing your caching strategy based on these insights, you can improve response times, reduce origin load, and control delivery costs.

1

Cache Status Overview

Visualize cache performance over time and understand how your CDN serves cached or uncached requests.

• Cache Status (time series): Displays cache responses such as HIT, MISS, or EXPIRED over time.

• Cache Status Pie (pie chart): Shows proportional distribution of cache statuses for a quick visual summary.

Values marked “–” represent requests without cache data, such as proxy responses or errors where cache information is unavailable.

2

Traffic Volume

Analyze total traffic volume and compare it with cache activity.

• Requests (time series): Displays overall traffic volume by requests, data transferred, or bandwidth.

• Use this visualization to correlate total traffic changes with cache status variations.

If request volume increases but HIT Ratio decreases, review TTL values or verify if newly deployed content bypassed caching.

3

Resource and Path Insights

Explore cache performance for your top CDN resources and URL paths.

• Hosts (table): Lists top CDN resources by selected metric (Requests, Data Transferred, or Bandwidth).

• Paths (table): Displays the most accessed URLs to highlight popular or problematic endpoints.

Low cache hit ratios on specific paths may indicate dynamic or query-based URLs not being cached properly.

4

Content Type and Client Analysis

Understand cache efficiency across different content types and user devices.

• Content Types (table): Displays traffic distribution by file type (e.g., images, HTML, video).

• Device Types (table): Shows cache behavior per device category (desktop, mobile, tablet).

• OS (table): Lists cache performance by client operating system.

Compare Content Type and Cache Status Pie charts — large MISS percentages for images or static assets often indicate short TTLs or bypassed caching headers.

Filters

You can refine cache analysis using the following filters:

Filter	Description
Domain	Select a specific CDN resource or domain.
Path	Focus on specific content by filtering URL path.
HTTP Referer	View caching behavior for traffic coming from specific sources.
Cache Status	Filter by cache response type (HIT, MISS, EXPIRED, etc.).
Metric	Choose between Requests, Data Transferred, or Bandwidth.
Items	Adjust the number of top entries displayed in tables or charts.

Combining Domain and Cache Status filters helps isolate which resources generate the most cache misses.

FAQ

Q1: Why is my HIT ratio lower than expected? A low HIT ratio may indicate frequent purging, short TTL values, or dynamic content that bypasses caching. Check your cache-control headers and Page Rules Settings.

Q2: What does the “EXPIRED” cache status mean? It means the content existed in cache but exceeded its TTL and required revalidation from the origin before being served.

Q3: How can I increase overall cache efficiency? Extend cache TTL for static assets, avoid unnecessary query parameters, and enable compression to reduce revalidation frequency.