Tested 2021-12-19 20:35:34 using Chrome 84.0.4147.89. 3 runs and connectivity native.
Metric | Value |
---|---|
Performance Score | 85 |
Total Page Transfer Size | 895.6 KB |
Requests | 26 |
TTFB [median] | 69 ms |
Fully Loaded [median] | 5.037 s |
First Visual Change [median] | 900 ms |
FCP [median] | 867 ms |
LCP [median] | 969 ms |
CLS [median] | 0.0048 |
Total Blocking Time [median] | 3.155 s |
Max Potential FID [median] | 857 ms |
CPU long tasks [median] | 11 |
CPU longest task duration | 865 ms |
Speed Index [median] | 997 ms |
Visual Complete 85% [median] | 900 ms |
Visual Complete 99% [median] | 2.700 s |
Last Visual Change [median] | 4.967 s |
Metric | min | median | mean | max |
---|---|---|---|---|
Visual Metrics | ||||
SpeedIndex | 997 ms | 997 ms | 997 ms | 997 ms |
FirstVisualChange | 866 ms | 900 ms | 889 ms | 900 ms |
LastVisualChange | 4.833 s | 4.967 s | 5.100 s | 5.500 s |
ContentfulSpeedIndex | 922 ms | 964 ms | 951 ms | 968 ms |
PerceptualSpeedIndex | 976 ms | 1.005 s | 997 ms | 1.011 s |
VisualReadiness | 3.967 s | 4.067 s | 4.211 s | 4.600 s |
VisualComplete85 | 866 ms | 900 ms | 889 ms | 900 ms |
VisualComplete95 | 966 ms | 1.000 s | 1.122 s | 1.400 s |
VisualComplete99 | 2.133 s | 2.700 s | 2.533 s | 2.767 s |
RUM sMetrics | ||||
TTFB | 68 ms | 69 ms | 69 ms | 70 ms |
LCP | 949 ms | 969 ms | 1.102 s | 1.389 s |
FCP | 856 ms | 867 ms | 865 ms | 871 ms |
firstPaint | 856 ms | 867 ms | 865 ms | 871 ms |
loadEventEnd | 4.863 s | 4.974 s | 5.116 s | 5.510 s |
rumSpeedIndex | 867 ms | 879 ms | 876 ms | 882 ms |
CLS | 0.0048 | 0.0048 | 0.0048 | 0.0048 |
CPU | ||||
Total Blocking Time | 3.016 s | 3.155 s | 3.250 s | 3.579 s |
Max Potential FID | 712 ms | 857 ms | 811 ms | 865 ms |
CPU long tasks | 11 | 11 | 11 | 12 |
Run 1 SpeedIndex median
Use--filmstrip.showAll
to show all filmstrips.
The coach helps you find performance problems on your web page using web performance best practice rules. And gives you advice on accessibility, privacy and best practices.
Title | Advice | Score |
---|---|---|
Always use an alt attribute on image tags (altImages) | The page has 1 image that lack alt attribute(s) and 1 of them are unique. | 90 |
| ||
Use headings tags within section tags to better structure your page (sections) | The page is missing heading(s) within a section tag on the page. It happens 4 times. | 60 |
Title | Advice | Score |
---|---|---|
Don't scale images in the browser (avoidScalingImages) | The page has 1 image(s) that are scaled more than 100 pixels. It would be better if those images are sent so the browser don't need to scale them. | 90 |
| ||
Avoid slowing down the critical rendering path (fastRender) | Maybe you could server push your CSS resources for faster rendering but that is actually really hard to get right :(. The style https://francearchives.fr/data/39b58a52585d82c4f11a2f28bb56b022/css/bootstrap.min.css is larger than the magic number TCP window size 14.5 kB. Make the file smaller and the page will render faster. The style https://francearchives.fr/data/39b58a52585d82c4f11a2f28bb56b022/css/font-awesome.css is larger than the magic number TCP window size 14.5 kB. Make the file smaller and the page will render faster. The style https://francearchives.fr/data/39b58a52585d82c4f11a2f28bb56b022/css/francearchives.bundle.css is larger than the magic number TCP window size 14.5 kB. Make the file smaller and the page will render faster. The page has 3 render blocking CSS request(s) and 0 blocking JavaScript request(s) inside of head. | 85 |
| ||
Avoid Frontend single point of failures (spof) | The page has 1 requests inside of the head that can cause a SPOF (single point of failure). Load them asynchronously or move them outside of the document head. | 90 |
| ||
Avoid doing redirects (assetsRedirects) | The page has 1 redirect(s). 1 request(s) are from other domains, it could be 3rd-party assets doing unnecessary redirects. :( | 90 |
| ||
Avoid extra requests by setting cache headers (cacheHeaders) | The page has 2 request(s) that are missing a cache time. Configure a cache time so the browser doesn't need to download them every time. It will save 305 B the next access. | 80 |
| ||
Long cache headers is good (cacheHeadersLong) | The page has 1 request(s) that have a shorter cache time than 30 days (but still a cache time). | 99 |
| ||
Always compress text content (compressAssets) | The page has 11 request(s) that are served uncompressed. You could save a lot of bytes by sending them compressed instead. | 0 |
| ||
Total CSS size shouldn't be too big (cssSize) | The total CSS transfer size is 298.1 kB and uncompressed size is 309.1 kB. That is big and the CSS could most probably be smaller. | 50 |
The favicon should be small and cacheable (favicon) | The favicon size is 15350 bytes. That's quite big, can you make it smaller? | 50 |
| ||
Avoid too many fonts (fewFonts) | The page has 2 font requests. Do you really need them? What value does the fonts give the user? | 80 |
| ||
Total JavaScript size shouldn't be too big (javascriptSize) | The total JavaScript transfer size is 245.9 kB. This is quite large. | 50 |
Avoid using incorrect mime types (mimeTypes) | The page has 1 misconfigured mime type(s). | 99 |
| ||
Make each CSS response small (optimalCssSize) | https://francearchives.fr/data/39b58a52585d82c4f11a2f28bb56b022/css/bootstrap.min.css size is 163.3 kB (163316) and that is bigger than the limit of 14.5 kB. https://francearchives.fr/data/39b58a52585d82c4f11a2f28bb56b022/css/font-awesome.css size is 33.5 kB (33539) and that is bigger than the limit of 14.5 kB. https://francearchives.fr/data/39b58a52585d82c4f11a2f28bb56b022/css/francearchives.bundle.css size is 86.4 kB (86364) and that is bigger than the limit of 14.5 kB. Try to make the CSS files fit into 14.5 KB. | 70 |
| ||
Don't use private headers on static content (privateAssets) | The page has 1 request(s) with private headers. Make sure that the assets really should be private and only used by one user. Otherwise, make it cacheable for everyone. | 90 |
|
Title | Advice | Score |
---|---|---|
Meta description (metaDescription) | The page is missing a meta description. | 0 |
Avoid use too many third party responses (thirdParty) | The page do 15% requests to third party domains (4 requests and 47 kB). First party is 22 requests and 870.1 kB. The regex .*francearchives.* was used to calculate first/third party requests. | 50 |
Avoid Unnecessary Headers (unnecessaryHeaders) | There are 1 response(s) that sets a p3p header. There are 23 response(s) that sets both a max-age and expires header. There are 2 response(s) that sets a server header. | 74 |
|
Title | Advice | Score |
---|---|---|
Use a good Content-Security-Policy header to make sure you you avoid Cross Site Scripting (XSS) attacks. (contentSecurityPolicyHeader) | Set a Content-Security-Policy header to make sure you are not open for Cross Site Scripting (XSS) attacks. You can start with setting a Content-Security-Policy-Report-Only header, that will only report the violation, not stop the download. | 0 |
| ||
Set a referrer-policy header to make sure you do not leak user information. (referrerPolicyHeader) | Set a referrer-policy header to make sure you do not leak user information. | 0 |
| ||
Set a strict transport header to make sure the user always use HTTPS. (strictTransportSecurityHeader) | The max age is lower than six months. Increase it to get a better score. | 80 |
Do not share user data with third parties (thirdPartyPrivacy) | You have 15% of the request that is 3rd party (4 requests with a size of 47 kB). The page also have request to companies that harvest data from users and do not respect users privacy (see https://en.wikipedia.org/wiki/Surveillance_capitalism). The page do 2 survelliance requests and uses 1 survelliance tools. The page do 2 analytics requests and uses 1 analytics tools. The project https://github.com/patrickhulce/third-party-web was used to calculate first/third party requests. | 0 |
Page info | |
---|---|
Title | Plan du site (FranceArchives) |
Width | 1351 |
Height | 129279 |
DOM elements | 20394 |
Avg DOM depth | 12 |
Max DOM depth | 15 |
Iframes | 0 |
Script tags | 8 |
Local storage | 35 B |
Session storage | 0 b |
HTML vs AMP | Plain good HTML page |
Third party | |
---|---|
JQuery | 3.1.1 |
Google Analytics | No |
Google Tag Manager | No |
Piwik | No |
Boomerang | No |
New Relic | No |
Visual Metrics | |
---|---|
First Visual Change | 866 ms |
Speed Index | 997 ms |
Perceptual Speed Index | 976 ms |
Contentful Speed Index | 922 ms |
Visual Complete 85% | 866 ms |
Visual Complete 95% | 1.400 s |
Visual Complete 99% | 2.133 s |
Last Visual Change | 4.833 s |
Visual Readiness | 3.967 s |
Navigation Timing | |
---|---|
backEndTime | 70 ms |
domContentLoadedTime | 4.643 s |
domInteractiveTime | 4.642 s |
domainLookupTime | 11 ms |
frontEndTime | 4.662 s |
pageDownloadTime | 123 ms |
pageLoadTime | 4.855 s |
redirectionTime | 0 ms |
serverConnectionTime | 33 ms |
serverResponseTime | 131 ms |
Extra timings | |
---|---|
first-contentful-paint | 856 ms |
first-paint | 856 ms |
RUM Speed Index | 867 ms |
Load Event End | 4.863 s |
Largest Contentful Paint | 1.389 s |
Fully loaded | 4.899 s |
Read more about Largest Contentful Paint.
URL | Tag | Render time | Load time | Size |
---|---|---|---|---|
https://francearchives.fr/data/39b58a52585d82c4f11a2f28bb56b022/images/logo_francearchives.svg | IMG | 1.389 s | 830 ms | 47.7 KB |
0.00 layout shift collected from the The Layout Instability API.
Id | URL | Tag | Render time | Load time | Natural width | Natural height |
---|
There are no Server Timings.
There are no custom configured scripts.
name | value |
---|
name | value |
---|---|
AudioHandlers | 0 |
Documents | 17 |
Frames | 8 |
JSEventListeners | 192 |
LayoutObjects | 48362 |
MediaKeySessions | 0 |
MediaKeys | 0 |
Nodes | 68087 |
Resources | 41 |
ContextLifecycleStateObservers | 39 |
V8PerContextDatas | 1 |
WorkerGlobalScopes | 0 |
UACSSResources | 0 |
RTCPeerConnections | 0 |
ResourceFetchers | 17 |
AdSubframes | 0 |
DetachedScriptStates | 0 |
ArrayBufferContents | 0 |
LayoutCount | 14 |
RecalcStyleCount | 16 |
LayoutDuration | 1627 |
RecalcStyleDuration | 1216 |
DevToolsCommandDuration | 698 |
ScriptDuration | 154 |
V8CompileDuration | 5 |
TaskDuration | 5463 |
TaskOtherDuration | 1763 |
ThreadTime | 5 |
JSHeapUsedSize | 3575636 |
JSHeapTotalSize | 5435392 |
FirstMeaningfulPaint | 2126 |
How the page is built.
Summary | |
---|---|
HTTP version | HTTP/2.0 |
Total requests | 26 |
Total domains | 4 |
Total transfer size | 895.6 KB |
Total content size | 2.2 MB |
Responses missing compression | 11 |
Requests per response code | |
---|---|
200 | 25 |
302 | 1 |
Content | Header Size | Transfer Size | Content Size | Requests |
---|---|---|---|---|
html | 0 b | 173.2 KB | 1.5 MB | 1 |
css | 0 b | 291.1 KB | 301.9 KB | 5 |
javascript | 0 b | 240.1 KB | 238.4 KB | 5 |
image | 0 b | 13.8 KB | 13.1 KB | 3 |
font | 0 b | 109.7 KB | 108.7 KB | 2 |
svg | 0 b | 19.5 KB | 18.0 KB | 6 |
other | 0 b | 32.8 KB | 32.5 KB | 1 |
json | 0 b | 500 B | 263 B | 1 |
favicon | 0 b | 15.0 KB | 14.7 KB | 1 |
Total | 0 b | 895.6 KB | 2.2 MB | 25 |
Domain | Header Size | Transfer Size | Content Size | Requests |
---|---|---|---|---|
francearchives.fr | N/A | 849.7 KB | 2.2 MB | 22 |
fonts.googleapis.com | N/A | 1.3 KB | 13.7 KB | 1 |
fonts.gstatic.com | N/A | 44.2 KB | 43.6 KB | 1 |
logs.xiti.com | N/A | 305 B | 35 B | 2 |
type | min | median | max |
---|---|---|---|
Expires | 0 seconds | 4 weeks | 1 year |
Last modified | 2 minutes | 26 minutes | 7 weeks |
Cookies | 0 | 0 | 0 |
Content | Transfer Size | Requests |
---|---|---|
html | 0 b | 0 |
css | 0 b | 0 |
javascript | 0 b | 0 |
image | 0 b | 0 |
font | 0 b | 0 |
json | 500 B | 1 |
favicon | 15.0 KB | 1 |
Total | 15.5 KB | 2 |
Includes requests done after onLoad.
Content | Transfer Size | Requests |
---|---|---|
html | 0 b | 0 |
css | 0 b | 0 |
javascript | 0 b | 0 |
image | 306 B | 1 |
font | 0 b | 0 |
svg | 566 B | 1 |
json | 500 B | 1 |
favicon | 15.0 KB | 1 |
Total | 16.3 KB | 4 |
Download the Chrome trace log and drag and drop it into Developer Tools / Performance in Chrome.
Collected using the Long Task API. A long task is a task that take 50 milliseconds or more.
Type | Quantity | Total duration (ms) |
---|---|---|
Total Blocking Time | 3016 | |
Max Potential First Input Delay | 712 | |
Long Tasks before First Paint | 2 | 607 |
Long Tasks before First Contentful Paint | 2 | 607 |
Long Tasks after Load Event End | 0 | 0 |
Total Long Tasks | 11 | 4073 |
name | startTime | duration | containerId | containerName | containerSrc | containerType |
---|---|---|---|---|---|---|
self | 209 | 56 | window | |||
unknown | 265 | 551 | window | |||
unknown | 935 | 424 | window | |||
unknown | 1390 | 712 | window | |||
unknown | 2128 | 369 | window | |||
unknown | 2533 | 376 | window | |||
unknown | 2938 | 366 | window | |||
unknown | 3333 | 334 | window | |||
unknown | 3698 | 508 | window | |||
unknown | 4237 | 304 | window | |||
self | 4720 | 72 | window |
Calculated using Tracium.
Categories (ms) | |
---|---|
parseHTML | 238 |
styleLayout | 2849 |
paintCompositeRender | 1098 |
scriptParseCompile | 5 |
scriptEvaluation | 168 |
garbageCollection | 0 |
other | 417 |
Events (ms) | |
---|---|
Layout | 1629 |
UpdateLayoutTree | 1221 |
Paint | 554 |
UpdateLayerTree | 519 |
RunTask | 408 |
ParseHTML | 210 |
V8.Execute | 151 |
ParseAuthorStyleSheet | 28 |
UpdateLayer | 13 |
Tool/domain | Time (ms) |
---|---|
francearchives.fr | 158.9 |
Third party requests categorised by Third party web.
Category | Requests |
---|---|
cdn | 2 |
survelliance | 2 |
analytics | 2 |
Category | Number of tools |
---|---|
cdn | 1 |
survelliance | 1 |
analytics | 1 |
cdn (2 requests) |
Google Fonts |
|
survelliance (2 requests) |
Google Fonts |
|
analytics (2 requests) |
XiTi |
|
Calculated using .*francearchives.* (use --firstParty
to configure).
Content | Header Size | Transfer Size | Content Size | Requests |
---|---|---|---|---|
html | 0 b | 173.2 KB | 1.5 MB | 1 |
css | 0 b | 289.7 KB | 288.2 KB | 4 |
javascript | 0 b | 240.1 KB | 238.4 KB | 5 |
image | 0 b | 13.5 KB | 13.1 KB | 2 |
font | 0 b | 65.4 KB | 65.1 KB | 1 |
svg | 0 b | 19.5 KB | 18.0 KB | 6 |
other | 0 b | 32.8 KB | 32.5 KB | 1 |
json | 0 b | 500 B | 263 B | 1 |
favicon | 0 b | 15.0 KB | 14.7 KB | 1 |
Total | N/A | 849.7 KB | 2.2 MB | 22 |
Content | Header Size | Transfer Size | Content Size | Requests |
---|---|---|---|---|
html | 0 b | 0 b | 0 b | 0 |
css | 0 b | 1.3 KB | 13.7 KB | 1 |
javascript | 0 b | 0 b | 0 b | 0 |
image | 0 b | 306 B | 35 B | 1 |
font | 0 b | 44.2 KB | 43.6 KB | 1 |
Total | N/A | 45.9 KB | 57.4 KB | 4 |