Caching Score: https://salsa.digital/
Summary
GradeB-
395/545
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.
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 "43de3-MgpU/T0CAnXElQbn3zw51WBLCmQ" was sent, and an HTTP 304 was responded with.
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
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://salsa.digital/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.
See the Wikipedia page on HTTP compression for more background.
In order 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
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://salsa.digital/?fbclid=1745025511.
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://salsa.digital/?gclsrc=1745025511&gclid=1745025511.
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://salsa.digital/?utm_source=1745025511&utm_medium=1745025511&utm_campaign=1745025511&utm_id=1745025511.
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 0 seconds (0 seconds).
Maximum possible points
100
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.
No Last-Modified header was found in the response.
Maximum possible points
30
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://salsa.digital/?ttclid=1745025511.
Maximum possible points
10
Image checks
Performed on the asset: https://salsa.digital/_nuxt/img/logo-primary.20e4983.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.
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 31536000 seconds (1 year and 1 month).
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/"c75a-19386ce18d0" was sent, and an HTTP 304 was responded with.
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 was sent, and an HTTP 304 was responded with.
Maximum possible points
3
Javascript checks
Performed on the asset: https://salsa.digital/_nuxt/81faafa.js
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.
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 31536000 seconds (1 year and 1 month).
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/"c31-1961deddcd0" was sent, and an HTTP 304 was responded with.
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 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.
See the Wikipedia page on HTTP compression for more background.
In order to get maximum points, you need to use Brotli or Zstandard compression.
Maximum possible points
2
Font checks
Performed on the asset: https://salsa.digital/fonts/Point-Bold.woff2
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.
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/"8e48-1961dec7958" was sent, and an HTTP 304 was responded with.
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 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.
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 0 seconds (0 seconds).
Maximum possible points
10
HTTP Response headers
| Name | Value |
|---|---|
| Status Code | HTTP 200 |
| Accept-Ranges | bytes |
| Age | 0 |
| Connection | keep-alive |
| Content-Encoding | br |
| Content-Length | 32739 |
| Date | Sat, 19 Apr 2025 01:18:30 GMT |
| Fastly-Debug-Digest | 9cb9d8fdb3beac7840c5df6202ae5e5215c6075152f66a0c1931f96656886433 |
| Fastly-Debug-Path | (D cache-syd10167-SYD 1745025511) (F cache-syd10121-SYD 1745025510) |
| Fastly-Debug-TTL | (H cache-syd10167-SYD - - 0) |
| Vary | Accept-Encoding |
| Via | 1.1 varnish |
| X-Cache | MISS, HIT |
| X-Cache-Hits | 0, 1 |
| X-Served-By | cache-syd10121-SYD, cache-syd10167-SYD |
| X-Timer | S1745025511.608178,VS0,VS0,VE3 |
| alt-svc | h3=":443";ma=86400,h3-29=":443";ma=86400,h3-27=":443";ma=86400 |
| content-type | text/html; charset=utf-8 |
| etag | "43de3-MgpU/T0CAnXElQbn3zw51WBLCmQ" |
| quant-compression | brotli |
| quant-server | QuantCDN v2.15.9 |
| section-cache-tags | e73f osgj 03tm hg3s amnu a1j3 lm2r oqk6 4u6m 95ps tpkk m8k5 j6vj dk6h 1esj vr62 ediu f4mb d4l6 m1f2 qkh3 lko5 i29s o8t6 33f8 aqkf jhsm 1f03 em0l e7r7 vbrc 6g2g affj 2s6v 4uht r89m 8ea2 vii8 os4m rbn3 i2g6 9r0a fvbk qsvt o4ep 4t3a m19s niok 5lg8 fn16 t3da h68v uqj6 v0d9 nq0p 6asn bh25 80b8 mu60 us5v 4v0i dmsh f92r 4kr1 nf4h s1af 91be bf64 drb8 jnhp pmj1 1a9q jlb5 8ihs c7s5 g98a kdo4 5d7j 2a7t uptm 77uv de3o eucm fond ogam ios2 rr0i ttic 4af1 b2u1 |
| surrogate-key | project:e4cf2a9222b94fb7fea8c12b18faa49ebad388136b24ea8f2d57ec03c7c8be8f url:e11c1e2b378c7bcee5b190611fadea102529cdfaed2cebd0f3c8349b88295a93 |
| x-powered-by | Express |
| x-sdp-app-type | ripple |
If you want to do this yourself
You can use the following cURL command:
curl -sLIXGET -H 'Fastly-Debug: 1' -H 'Accept-Encoding: br, zstd, gzip, deflate' 'https://salsa.digital/' | sort