Caching Score: https://www.nationalredress.gov.au/
Summary
GradeB
506/642
Requested URL checks
What is this check, and why should you care
Having a cache hit ensures the fastest possible delivery of content to end users.
The response header X-Cache had a value of TCP_MEM_HIT from a23-40-103-219.deploy.akamaitechnologies.com (AkamaiGHost/22.4.0.1-6bbb0b00129197009f3171ac050b188c) (-).
Akamai has documentation on how to interpret the X-Cache and X-Cache-Remote headers.
Maximum possible points
100
What is this check, and why should you care
Using a CDN is extremely useful for caching purposes.
Maximum possible points
50
What is this check, and why should you care
The time that it takes for a user's browser to receive the first byte of page content.
The lower the TTFB, the faster your site will be perceived by the end user.
To get maximum points, your TTFB must be less than or equal to 30ms. If your TTFB is more than 1 second then you get no points here.
Maximum possible points
50
What is this check, and why should you care
Using Last-Modified headers is an easy way to ensure your visitors are always getting the most up-to-date version of the content. HTTP 304 responses are used to indicate this is working.
An HTTP request with the request header If-Modified-Since with a value of Wed, 21 Jan 2026 03:57:37 GMT was sent, and an HTTP 304 was responded with.
Maximum possible points
30
What is this check, and why should you care
Having tiered caching can help improve the cache hit ratio of your site because it provides an additional layer of caching in front of your origin.
Maximum possible points
25
What is this check, and why should you care
Caching HTTP 404s is a great way to offload requests from your origin.
To get maximum points, you need to have the ability to cache an HTTP 404 for any amount of time.
This check requested the URL https://www.nationalredress.gov.au/cachingscorebrokenurltest.
Maximum possible points
20
What is this check, and why should you care
The purpose of HTTP compression is to reduce the size of the files sent by a CDN/web server by eliminating redundant information in those files. The smaller the size of the files, the more quickly they can be served over the World Wide Web.
On top of faster delivery, compression also reduces the amount of bandwidth used by the CDN/web server. This is especially important for mobile devices, where the bandwidth is often limited.
The response header Content-Encoding had a value of br.
Akamai has documentation on how to enable Brotli compression.
See the Wikipedia page on HTTP compression for more background.
To get maximum points, you need to use Brotli or Zstandard compression.
Maximum possible points
20
What is this check, and why should you care
Drupal 8+ provides an Internal Page Cache module recommended for small to medium-sized websites.
There is value in using this module, even when you are using Akamai, due to the low cache lifetime of 13 minutes.
To get maximum points, you must enable the page_cache module, and have a HIT on Drupal's page cache.
See Drupal's documentation on the Internal Page Cache module. Also, Wim Leers wrote a really awesome blog post on the release of this module with important background.
Maximum possible points
20
What is this check, and why should you care
Akamai has very strict controls around cache tag lengths, counts and characters. If you exceed or break these controls then you risk your content not being invalidated when you issue a cache tag purge.
No issues were found.
See the Akamai technical documentation on how to interpret this header.
Maximum possible points
10
What is this check, and why should you care
CSS aggregation reduces the number of assets your site needs to download. The filename contains a hash of all the file contents, meaning you can cache these files for an extremely long time with no negative consequences.
Maximum possible points
10
What is this check, and why should you care
Javascript aggregation reduces the number of assets your site needs to download. The filename contains a hash of all the file contents, meaning you can cache these files for an extremely long time with no negative consequences.
Maximum possible points
10
What is this check, and why should you care
Drupal 9.5+ introduces a new debug setting to make it easier to debug render caching. This setting will add cache debugging output for each rendered element.
The main issue with this is that this slows down your page loads (on top increasing your page weight).
To get maximum points, you must disable the render cache debug.
Maximum possible points
10
What is this check, and why should you care
Drupal 7+ provides a Statistics module to which records content view statistics in Drupal's database.
The main issue with this module is that it sends an un-cacheable HTTP POST request to your site to record a 'content view' statistic. This does not scale well as you Drupal site gets more traffic.
To get maximum points, you must disable the statistics module.
Maximum possible points
10
What is this check, and why should you care
Drupal 8+ uses Twig for templating, and the Twig template engine offers a debug tool to which emits out a list of template filenames in the HTML source.
The main issue with this is that you often also have other Twig related performance issues as well, e.g. automatic reloading.
To get maximum points, you must disable Twig debug.
Maximum possible points
10
What is this check, and why should you care
You can increase the cache hit rate of your site by stripping certain query parameters from the cache key.
FBCLID is one such parameter that can be stripped by your caching server. This query parameter only really serves a purpose for Javascript to read, and Javascript can still read it from the browser URL.
This check requested the URL https://www.nationalredress.gov.au/?fbclid=1768970041.
Maximum possible points
10
What is this check, and why should you care
You can increase the cache hit rate of your site by stripping certain query parameters from the cache key.
GCLID and GCLSRC are two such parameters that can be stripped by your caching server. These query parameters only really serve a purpose for Javascript to read, and Javascript can still read it from the browser URL.
This check requested the URL https://www.nationalredress.gov.au/?gclsrc=1768970041&gclid=1768970041.
Maximum possible points
10
What is this check, and why should you care
You can increase the cache hit rate of your site by stripping certain query parameters from the cache key.
TTCLID is one such parameter that can be stripped by your caching server. This query parameter only really serves a purpose for Javascript to read, and Javascript can still read it from the browser URL.
This check requested the URL https://www.nationalredress.gov.au/?ttclid=1768970041.
Maximum possible points
10
What is this check, and why should you care
You can increase the cache hit rate of your site by stripping certain query parameters from the cache key.
UTM is a collection of parameters that can be stripped by your caching server. These query parameters only really serve a purpose for Javascript to read, and Javascript can still read them from the browser URL.
This check requested the URL https://www.nationalredress.gov.au/?utm_source=1768970041&utm_medium=1768970041&utm_campaign=1768970041&utm_id=1768970041.
Maximum possible points
10
What is this check, and why should you care
There is a SPAM protection module in Drupal called Honeypot.
The honeypot module has a feature that adds a time based hidden form field to forms to protect against bots filling them in too quickly. This is a nice feature, however it happens to disable caching for the entire page. This is terrible for high traffic sites.
It is recommended to disable this time based feature, and only use the core honeypot feature of a hidden input field.
Maximum possible points
5
What is this check, and why should you care
The language_cookie module breaks proxy caching because it makes Drupal’s response vary by a cookie, which most HTTP caches don’t handle efficiently.
The module also has a side effect of breaking Drupal’s page_cache system as well - see the issue #3512070.
To get maximum points, you must disable the language_cookie module.
Maximum possible points
5
What is this check, and why should you care
There are 2 filesystems in Drupal - public files and private files.
Private files force Drupal to bootstrap in order to serve the file, and access control is checked every single time. This is useful for sensitive files, but a hindrance when your site is under high load.
It is recommended to use Drupal's public file system for static, non-sensitive files, and reserve the use of private files for dynamic, or sensitive files.
Maximum possible points
5
What is this check, and why should you care
Using a long cache lifetime helps to ensure a high cache hit rate.
To get maximum points, your cache lifetime must be greater than or equal to 4 weeks. If your cache lifetime is less, then you will get some proportion of the score based on how close to 4 weeks you are.
The current cache lifetime is 780 seconds (13 minutes).
Maximum possible points
100
What is this check, and why should you care
Using ETag identifiers is an easy way to ensure your visitors are always getting the most up-to-date version of the content. This mechanism allows caches to be more efficient and saves bandwidth, as a Web server does not need to send a full response if the content has not changed. HTTP 304 responses are used to indicate this is working.
An HTTP request with the request header If-None-Match with a value of W/"1768967857" was sent, but an HTTP 304 was not responded with. So you have Etags, but they are not doing anything.
Akamai has documentation on how to enable Etag support (requires login).
See the Wikipedia page on ETag for more background.
To get maximum points, you need to have ETag identifiers and an HTTP 304 response must be received when using a valid If-None-Match request header.
Maximum possible points
30
Image checks
Performed on the asset: https://www.nationalredress.gov.au/sites/default/files/images/2024-04/image.png
See the HTTP headers for this image file.
What is this check, and why should you care
Having a cache hit ensures the fastest possible delivery of content to end users.
The response header X-Cache had a value of TCP_HIT from a23-40-103-219.deploy.akamaitechnologies.com (AkamaiGHost/22.4.0.1-6bbb0b00129197009f3171ac050b188c) (-).
Akamai has documentation on how to interpret the X-Cache and X-Cache-Remote headers.
Maximum possible points
10
What is this check, and why should you care
Using ETag identifiers is an easy way to ensure your visitors are always getting the most up-to-date version of the content. This mechanism allows caches to be more efficient and saves bandwidth, as a Web server does not need to send a full response if the content has not changed. HTTP 304 responses are used to indicate this is working.
An HTTP request with the request header If-None-Match with a value of "66304dce-4b0b1" was sent, and an HTTP 304 was responded with.
Akamai has documentation on how to enable Etag support (requires login).
See the Wikipedia page on ETag for more background.
To get maximum points, you need to have ETag identifiers and an HTTP 304 response must be received when using a valid If-None-Match request header.
Maximum possible points
3
What is this check, and why should you care
Using Last-Modified headers is an easy way to ensure your visitors are always getting the most up-to-date version of the content. HTTP 304 responses are used to indicate this is working.
An HTTP request with the request header If-Modified-Since with a value of Tue, 30 Apr 2024 01:47:58 GMT was sent, and an HTTP 304 was responded with.
Maximum possible points
3
What is this check, and why should you care
Using a long cache lifetime helps to ensure a high cache hit rate.
To get maximum points, your cache lifetime must be greater than or equal to 4 weeks. If your cache lifetime is less, then you will get some proportion of the score based on how close to 4 weeks you are.
The current cache lifetime is 494877 seconds (5 days and 17 hours).
Maximum possible points
10
CSS checks
Performed on the asset: https://www.nationalredress.gov.au/sites/default/files/css/css_jAznpGm9sTcW5zRo33DI-f8D7YCJ_BwDT-P-_M07kwc.css?delta=0&language=en&theme=nationalredress_subtheme&include=eJxFyUEKwCAMBdELWXOmqEEDsYpfLb19oRs3s3gTdWucRapQBK7NQzmYwMUzsrXA5joPzoN7AaWxOps_4tfdVzBFkeTwYkqlwBC3VR7QX19bWiYfBDkspw
See the HTTP headers for this CSS file.
What is this check, and why should you care
Having a cache hit ensures the fastest possible delivery of content to end users.
The response header X-Cache had a value of TCP_MEM_HIT from a23-40-103-219.deploy.akamaitechnologies.com (AkamaiGHost/22.4.0.1-6bbb0b00129197009f3171ac050b188c) (-).
Akamai has documentation on how to interpret the X-Cache and X-Cache-Remote headers.
Maximum possible points
10
What is this check, and why should you care
Using Last-Modified headers is an easy way to ensure your visitors are always getting the most up-to-date version of the content. HTTP 304 responses are used to indicate this is working.
An HTTP request with the request header If-Modified-Since with a value of Mon, 05 Jan 2026 00:52:41 GMT was sent, and an HTTP 304 was responded with.
Maximum possible points
3
What is this check, and why should you care
The purpose of HTTP compression is to reduce the size of the files sent by a CDN/web server by eliminating redundant information in those files. The smaller the size of the files, the more quickly they can be served over the World Wide Web.
On top of faster delivery, compression also reduces the amount of bandwidth used by the CDN/web server. This is especially important for mobile devices, where the bandwidth is often limited.
The response header Content-Encoding had a value of br.
Akamai has documentation on how to enable Brotli compression.
See the Wikipedia page on HTTP compression for more background.
To get maximum points, you need to use Brotli or Zstandard compression.
Maximum possible points
2
What is this check, and why should you care
Using a long cache lifetime helps to ensure a high cache hit rate.
To get maximum points, your cache lifetime must be greater than or equal to 4 weeks. If your cache lifetime is less, then you will get some proportion of the score based on how close to 4 weeks you are.
The current cache lifetime is 1272710 seconds (2 weeks and 17 hours).
Maximum possible points
10
What is this check, and why should you care
Using ETag identifiers is an easy way to ensure your visitors are always getting the most up-to-date version of the content. This mechanism allows caches to be more efficient and saves bandwidth, as a Web server does not need to send a full response if the content has not changed. HTTP 304 responses are used to indicate this is working.
An HTTP request with the request header If-None-Match with a value of W/"695b0b59-d92" was sent, but an HTTP 304 was not responded with. So you have Etags, but they are not doing anything.
Akamai has documentation on how to enable Etag support (requires login).
See the Wikipedia page on ETag for more background.
To get maximum points, you need to have ETag identifiers and an HTTP 304 response must be received when using a valid If-None-Match request header.
Maximum possible points
3
Javascript checks
Performed on the asset: https://www.nationalredress.gov.au/sites/default/files/js/js_IJOV5YqtpSbWAQhlxiTdZKimd4mUu5byXbmPcKjDOQQ.js?scope=footer&delta=0&language=en&theme=nationalredress_subtheme&include=eJxLzizLTC7JSM1N1U_PyU9KzNFJz89Pz0mNT8xLzKksyUwu1kcXAAANXhRl
See the HTTP headers for this Javascript file.
What is this check, and why should you care
Having a cache hit ensures the fastest possible delivery of content to end users.
The response header X-Cache had a value of TCP_MEM_HIT from a23-40-103-219.deploy.akamaitechnologies.com (AkamaiGHost/22.4.0.1-6bbb0b00129197009f3171ac050b188c) (-).
Akamai has documentation on how to interpret the X-Cache and X-Cache-Remote headers.
Maximum possible points
10
What is this check, and why should you care
Using Last-Modified headers is an easy way to ensure your visitors are always getting the most up-to-date version of the content. HTTP 304 responses are used to indicate this is working.
An HTTP request with the request header If-Modified-Since with a value of Tue, 09 Dec 2025 01:51:40 GMT was sent, and an HTTP 304 was responded with.
Maximum possible points
3
What is this check, and why should you care
The purpose of HTTP compression is to reduce the size of the files sent by a CDN/web server by eliminating redundant information in those files. The smaller the size of the files, the more quickly they can be served over the World Wide Web.
On top of faster delivery, compression also reduces the amount of bandwidth used by the CDN/web server. This is especially important for mobile devices, where the bandwidth is often limited.
The response header Content-Encoding had a value of br.
Akamai has documentation on how to enable Brotli compression.
See the Wikipedia page on HTTP compression for more background.
To get maximum points, you need to use Brotli or Zstandard compression.
Maximum possible points
2
What is this check, and why should you care
Using a long cache lifetime helps to ensure a high cache hit rate.
To get maximum points, your cache lifetime must be greater than or equal to 4 weeks. If your cache lifetime is less, then you will get some proportion of the score based on how close to 4 weeks you are.
The current cache lifetime is 1268653 seconds (2 weeks and 16 hours).
Maximum possible points
10
What is this check, and why should you care
Using ETag identifiers is an easy way to ensure your visitors are always getting the most up-to-date version of the content. This mechanism allows caches to be more efficient and saves bandwidth, as a Web server does not need to send a full response if the content has not changed. HTTP 304 responses are used to indicate this is working.
An HTTP request with the request header If-None-Match with a value of W/"693780ac-2cd91" was sent, but an HTTP 304 was not responded with. So you have Etags, but they are not doing anything.
Akamai has documentation on how to enable Etag support (requires login).
See the Wikipedia page on ETag for more background.
To get maximum points, you need to have ETag identifiers and an HTTP 304 response must be received when using a valid If-None-Match request header.
Maximum possible points
3
HTTP Response headers
| Name | Value |
|---|---|
| Status Code | HTTP 200 |
| Cache-Control | public, max-age=780 |
| Connection | keep-alive |
| Content-Encoding | br |
| Content-Language | en |
| Content-Length | 15859 |
| Content-Type | text/html; charset=UTF-8 |
| Date | Wed, 21 Jan 2026 04:34:01 GMT |
| ETag | W/"1768967857" |
| Edge-Cache-Tag | 1qasg 4pu5r 6orn8 5ilth 304c3 56f6g 4e7vf o1m2j 4l5bv 1mqm4 6aniq 40ksd 1vd2o imgcl 28m9u 11qf4 eut08 3ld1f 1sp0n 1qnog 7s03q 42v9a 5fdil 1ne76 1f7mo 2mahs 491u0 2tc3u 4m58i 267qj 1h150 3067k 7mame 55jl5 5objh 1kt34 5sl2b c4qv2 4tloe 6aeea j187m 38tkl 2l91e t5ata 6nbbv 4ef8v 5maa8 1ds40 2fdi7 6avev 2ed84 32db3 7and6 146ho 2ibks 65ebt 7b274 4vjbj 2nlsi 1nnnl 1o1m4 1dk93 1408f eh5ue 35oa7 6fli7 3fgga 1rr9t 282sm 7nj90 4ndlj 2phgl 3oub1 6jfkk 65f7q 69lgg 370oi 3j6ig 6ujve dqvsp 7r728 6j21h 599q0 7u4c4 3tl80 4vsbt 7nk85 5kd7m 40m2m 6lc8e 4o5ak 74s2c 38m18 4ul4a gb5uc 40mef 4eura 7cmkj 2tds8 4b9ca 4scvg 3vloo 6eocn 175hl 7mmlm fp06m 6qu3p 66ree 7b8vg 2n31a 643u7 5ubg5 20mic 5qaj3 29r3b 3ce49 2vik0 494gt 6srrj 0ooqv 56pb5 56s89 5qamj 7s5nr 1cejt 61r3j 38540 4c1eo 6to2b 689pf 5fgeg |
| Expires | Wed, 21 Jan 2026 04:47:01 GMT |
| Last-Modified | Wed, 21 Jan 2026 03:57:37 GMT |
| X-Cache | TCP_MEM_HIT from a23-40-103-219.deploy.akamaitechnologies.com (AkamaiGHost/22.4.0.1-6bbb0b00129197009f3171ac050b188c) (-) |
| X-Cache-Key | S/L/132192/682328/1d/www.nationalredress.gov.au/ |
| X-Cache-Key-Extended-Internal-Use-Only | S/L/132192/682328/1d/www.nationalredress.gov.au/ vcd=6147 |
| X-Check-Cacheable | YES |
| X-Drupal-Cache | HIT |
| X-Drupal-Dynamic-Cache | MISS |
| X-Lagoon | amazeeio-govcms5>sigsci-ingress-nginx>nationalredress-master:nginx> |
If you want to do this yourself
You can use the following cURL command:
curl -sLIXGET -H 'Pragma: akamai-x-cache-on, akamai-x-cache-remote-on, akamai-x-check-cacheable, akamai-x-get-cache-key, akamai-x-get-cache-tags' -H 'Accept-Encoding: br, zstd, gzip, deflate' 'https://www.nationalredress.gov.au/' | sort