7.3 sec in total
318 ms
6 sec
1.1 sec
Click here to check amazing Mackerel content for Japan. Otherwise, check out these important facts you probably never knew about mackerel.io
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Visit mackerel.ioWe analyzed Mackerel.io page load time and found that the first response time was 318 ms and then it took 7 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.
mackerel.io performance score
name
value
score
weighting
Value3.1 s
48/100
10%
Value3.1 s
76/100
25%
Value3.5 s
88/100
10%
Value500 ms
58/100
30%
Value0
100/100
15%
Value10.3 s
25/100
10%
318 ms
672 ms
513 ms
678 ms
1706 ms
Our browser made a total of 107 requests to load all elements on the main page. We found that 51% of them (55 requests) were addressed to the original Mackerel.io, 7% (7 requests) were made to Apis.google.com and 6% (6 requests) were made to B.hatena.ne.jp. The less responsive or slowest element that took the longest time to load (2.5 sec) belongs to the original domain Mackerel.io.
Page size can be reduced by 237.5 kB (16%)
1.5 MB
1.3 MB
In fact, the total size of Mackerel.io main page is 1.5 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 60% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.
Potential reduce by 41.5 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 41.5 kB or 76% of the original size.
Potential reduce by 40.7 kB
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Mackerel images are well optimized though.
Potential reduce by 147.2 kB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 147.2 kB or 50% of the original size.
Potential reduce by 8.0 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Mackerel.io needs all CSS files to be minified and compressed as it can save up to 8.0 kB or 75% of the original size.
Number of requests can be reduced by 39 (39%)
100
61
The browser has sent 100 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Mackerel. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
mackerel.io
318 ms
mackerel.io
672 ms
3406890073.js
513 ms
mackerel.min.css
678 ms
mackerel.en.min.js
1706 ms
bookmark_button.js
1261 ms
logo-icon40@2x.png
288 ms
logo40@2x.png
452 ms
screenshot-service.png
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screenshot-sp-alert.png
1112 ms
nintendo.png
715 ms
nifty.png
724 ms
bandai-namco-studios.png
766 ms
cyber-agent.png
1108 ms
pepabo.png
878 ms
livesense.png
1109 ms
graph-video.png
1546 ms
feature1.png
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feature2.png
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feature3.png
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feature4.png
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feature5.png
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feature6.png
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screenshot-service-dark.png
1844 ms
nulab.png
1472 ms
thumbnail.jpg
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thumbnail.jpg
2324 ms
thumbnail.jpg
1965 ms
freakout.png
1671 ms
seesaa.png
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kayac.png
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dac.png
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bizreach.png
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mtburn.png
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kaizen-platform.png
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mercari.png
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increments.png
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animatelab.png
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prott.png
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d2c.png
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button-only@2x.png
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tv-asahi-mediaplex.png
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mackerelicons-regular.otf
2512 ms
septeni-original.png
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retty.png
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blayn.png
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feedforce.png
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intimate-merger.png
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afb5yvp.js
441 ms
widgets.js
222 ms
toreta.png
1913 ms
locondo.png
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wfs.png
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ruby.png
2156 ms
all.js
503 ms
platform.js
295 ms
btn.js
231 ms
gtm.js
320 ms
pta.js
1245 ms
validation-validity-indicator.html
1825 ms
379 ms
gyazo.png
1944 ms
gaiax.png
1837 ms
hatena.png
1858 ms
button
7 ms
button.css
46 ms
shared.js
48 ms
button.js
50 ms
pocket_button.png
28 ms
cb=gapi.loaded_0
70 ms
cb=gapi.loaded_1
103 ms
fastbutton
186 ms
analytics.js
201 ms
conversion_async.js
110 ms
ga.js
205 ms
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202 ms
postmessageRelay
277 ms
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cb=gapi.loaded_0
107 ms
cb=gapi.loaded_1
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reset.css
294 ms
entry-button.css
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collect
133 ms
collect
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collect
144 ms
collect
280 ms
xd_arbiter.php
405 ms
api.js
100 ms
core:rpc:shindig.random:shindig.sha1.js
195 ms
2536007149-postmessagerelay.js
187 ms
125 ms
Ig4jKbZW7zKc1jNKQy9Rce8NjJvE010caRD6bjBOEVMffVzmggMZeMI6MK6f5Mb.eot
42 ms
9Uis-3giFCttw0O0fl-oBwAZtLPThlrLcKEeDFJQP_qffVxmggMZeMI6MK6f5MS.eot
119 ms
p.gif
227 ms
ga-audiences
84 ms
bbtn-l_v3.png
229 ms
61d215f7.js
384 ms
pn
961 ms
loading.png
195 ms
nr-885.min.js
53 ms
like.php
97 ms
xd_arbiter.php
84 ms
602fc520ba
128 ms
rU2ubZ6l1Q5.js
292 ms
LVx-xkvaJ0b.png
328 ms
mackerel.io accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Links do not have a discernible name
mackerel.io best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
mackerel.io SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
Tap targets are not sized appropriately
EN
N/A
N/A
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Mackerel.io can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Mackerel.io main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.
mackerel.io
Open Graph data is detected on the main page of Mackerel. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: