519/613
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 a23-214-88-109.deploy.akamaitechnologies.com (AkamaiGHost/11.8.1-4626758e7fa58b73aefa05b51f5ad43e) (-)
.
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.
In order 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 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 "1738389884"
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.
In order 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
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 Sat, 01 Feb 2025 06:04:44 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.
In order 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://usa.embassy.gov.au/cachingscorebrokenurltest.
Maximum possible points
20
What is this check, and why should you care
Drupal 8+ provides an Internal Page Cache module that is 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 15 minutes.
In order 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 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).
In order 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.
In order 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.
In order 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://usa.embassy.gov.au/?fbclid=1738844802.
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://usa.embassy.gov.au/?gclsrc=1738844802&gclid=1738844802.
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://usa.embassy.gov.au/?ttclid=1738844802.
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://usa.embassy.gov.au/?utm_source=1738844802&utm_medium=1738844802&utm_campaign=1738844802&utm_id=1738844802.
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
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.
In order 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.
Current cache lifetime is 900 seconds (15 minutes).
Maximum possible points
100
Performed on the asset: https://usa.embassy.gov.au/sites/default/files/styles/icon_scale_100w/public/2022-11/icon-passport_0.png?itok=pTgti2IS
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 a23-214-88-109.deploy.akamaitechnologies.com (AkamaiGHost/11.8.1-4626758e7fa58b73aefa05b51f5ad43e) (-)
.
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 a long cache lifetime helps to ensure a high cache hit rate.
In order 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.
Current cache lifetime is 2628001 seconds (1 month and 2 days).
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 "637d9f4c-721"
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.
In order 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 Wed, 23 Nov 2022 04:19:24 GMT
was sent, and an HTTP 304 was responded with.
Maximum possible points
3
Performed on the asset: https://usa.embassy.gov.au/sites/default/files/css/css_QoGdFOUnVwERRPdFZYaLANkj1p5SIIiVVQJ5agAp3bw.css?delta=0&language=en&theme=usa_au_embassy_sass&include=eJxljEEOAyEMAz9Ey5NQgIhFzRKEE7X7-3Jpe-jFkkdjFx3GL3OSWJdPknv5kpv08UDABeMzZgIHByXyxOduuBJ2xiaatwy7tt_CpEVt0TzwefyRu4_pWToOrkHoUreUvUvlFe2pRSWBi3UdIasabK9SprW6xqGV_-nJADVGkt4OewMtjFJM
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_HIT from a23-214-88-109.deploy.akamaitechnologies.com (AkamaiGHost/11.8.1-4626758e7fa58b73aefa05b51f5ad43e) (-)
.
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 a long cache lifetime helps to ensure a high cache hit rate.
In order 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.
Current cache lifetime is 2628001 seconds (1 month and 2 days).
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 "674e4553-2884"
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.
In order 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 Mon, 02 Dec 2024 23:40:03 GMT
was sent, and an HTTP 304 was responded with.
Maximum possible points
3
Performed on the asset: https://usa.embassy.gov.au/sites/default/files/js/js_iPy4LOP_VNUg5UZvuxGYTuAOEpvDz2Jdb_-cA-4YhSA.js?scope=header&delta=0&language=en&theme=usa_au_embassy_sass&include=eJxdzDEOgCAMRuELoRypqUgaYqXGv03k9jI5uLzhG16x7vXxYM37HRfrWj5ZtPUDScxEK3FnHd4K8h9SgImD6rkxMAizWdS2uYCPeZEXZuIpUg
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_HIT from a23-214-88-109.deploy.akamaitechnologies.com (AkamaiGHost/11.8.1-4626758e7fa58b73aefa05b51f5ad43e) (-)
.
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 a long cache lifetime helps to ensure a high cache hit rate.
In order 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.
Current cache lifetime is 2628001 seconds (1 month and 2 days).
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 "674e44cc-e9"
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.
In order 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 Mon, 02 Dec 2024 23:37:48 GMT
was sent, and an HTTP 304 was responded with.
Maximum possible points
3
Name | Value |
---|---|
Status Code | HTTP 200 |
Cache-Control | max-age=900, public |
Connection | keep-alive |
Content-Language | en |
Content-Length | 83791 |
Content-Type | text/html; charset=UTF-8 |
Date | Thu, 06 Feb 2025 12:26:42 GMT |
ETag | "1738389884" |
Edge-Cache-Tag | 54ctl 3aiqs 170s8 58hqb 3phhm 78vd6 49oo8 1sb26 1crkt 1uqfe 49bub 4o6gt 4sfd3 68jl2 6qat0 4ocfe 6jgev 3ljei 7buer 4lcab 5cbe2 q2fjs 41rb8 4s17c 1vhgi 2o6dn 52fra at8la 756jg 6q8vn 6scg8 39jf4 5790e 5r1bj 3it03 22g2d 248gm 7o402 jp6f4 6qslk 2bnb4 4tcim 6m8ku 74hui 3om4j 51cgc 3pm6i 66pp2 35i2c cu5g8 4u3tr 2a0mk 0d3sg 6nngf 7db4e 34ek6 18l73 2s81c 7srcu 3ehel q709e 3on6o 5l7c7 3sofj 1ocsa 5d373 22t3s 5m63l 7ddr1 2i4a3 7il9i 0q6pn 2tjes 3pvpn 3l7jj 6co72 232s9 7qqpj 79fgm 7589o 5ifai 778cd 5p92n 28urt 6h23o 4pkbb 4g0tl 466m3 69csr 17mcm 3fevo 66iav 18drv 3k0jj 1jfcu 7ihl0 7pg2i 5s397 3phgd 1671m 8rehq 6krdc 3gn83 28c5r 7fovi 5qp26 3e5a3 4sttl nr93s 5gsk4 1tm22 7h16p 34srn 1muam 5ovmd 651kt 5glp0 2h2a3 3apop 15ule 5c6um 5vee3 1je3j 1j54s 7kam3 5bnlt 6uvfq 3n1co 3bha0 23grk 4qrbs 6r0jv 1b3m6 3b4u6 2go5c 732ht 2sq42 2sqi4 139q1 |
Expires | Sun, 19 Nov 1978 05:00:00 GMT |
Last-Modified | Sat, 01 Feb 2025 06:04:44 GMT |
X-Cache | TCP_HIT from a23-214-88-109.deploy.akamaitechnologies.com (AkamaiGHost/11.8.1-4626758e7fa58b73aefa05b51f5ad43e) (-) |
X-Cache-Key | S/L/101947/669672/1d/usa.embassy.gov.au/ |
X-Cache-Key-Extended-Internal-Use-Only | S/L/101947/669672/1d/usa.embassy.gov.au/ vcd=6147 |
X-Check-Cacheable | YES |
X-Drupal-Cache | HIT |
X-Drupal-Dynamic-Cache | MISS |
X-Lagoon | amazeeio-govcms5>sigsci-ingress-nginx>usaembassy2-master:nginx> |
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' 'https://usa.embassy.gov.au/' | sort