871 ms in total
114 ms
569 ms
188 ms
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Visit roam.coWe analyzed Roam.co page load time and found that the first response time was 114 ms and then it took 757 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.
roam.co performance score
name
value
score
weighting
Value1.6 s
93/100
10%
Value2.2 s
94/100
25%
Value1.6 s
100/100
10%
Value220 ms
88/100
30%
Value0
100/100
15%
Value4.1 s
86/100
10%
114 ms
114 ms
192 ms
134 ms
126 ms
Our browser made a total of 17 requests to load all elements on the main page. We found that 71% of them (12 requests) were addressed to the original Roam.co, 12% (2 requests) were made to Google-analytics.com and 12% (2 requests) were made to . The less responsive or slowest element that took the longest time to load (372 ms) belongs to the original domain Roam.co.
Page size can be reduced by 160.3 kB (27%)
584.4 kB
424.1 kB
In fact, the total size of Roam.co main page is 584.4 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 20% of websites need less resources to load. Images take 501.6 kB which makes up the majority of the site volume.
Potential reduce by 4.1 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 4.1 kB or 60% of the original size.
Potential reduce by 154.3 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. Obviously, Roam needs image optimization as it can save up to 154.3 kB or 31% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 50 B
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. This website has mostly compressed JavaScripts.
Potential reduce by 1.8 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. Roam.co has all CSS files already compressed.
We found no issues to fix!
14
14
The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Roam. According to our analytics all requests are already optimized.
roam.co
114 ms
roam.css
114 ms
press_nyt.png
192 ms
press_economist.png
134 ms
press_wsj.png
126 ms
press_dezeen.png
126 ms
press_frame.png
191 ms
press_vogue.png
197 ms
press_ad.png
192 ms
press_sz.png
365 ms
press_monocle.png
372 ms
backsoon.png
227 ms
analytics.js
21 ms
collect
15 ms
3vstc9+Bxx0yGFHwvs45rgTTjrltDPOOue8Cy665LIrrspwzXU33HTLbZnuuOteeGMPPPTIY088lSXbMzmeeyHXS3leeS3fG2+9894HBT765PNvwoVuzwAAAA==
5 ms
AYd5lpw=
4 ms
js
83 ms
roam.co 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.
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
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
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
roam.co best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
roam.co SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
robots.txt is not valid
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
EN
N/A
N/A
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Roam.co 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 Roam.co 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.
roam.co
Open Graph data is detected on the main page of Roam. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: