8.8 sec in total
75 ms
8.4 sec
371 ms
Click here to check amazing Rollbar content for India. Otherwise, check out these important facts you probably never knew about rollbar.com
Rollbar provides real-time error tracking & debugging tools for developers. ✓ JavaScript ✓PHP ✓Ruby ✓Python ✓C++ ✓Android ✓iOS ✓Apex & more.
Visit rollbar.comWe analyzed Rollbar.com page load time and found that the first response time was 75 ms and then it took 8.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
rollbar.com performance score
name
value
score
weighting
Value3.5 s
35/100
10%
Value18.7 s
0/100
25%
Value12.2 s
3/100
10%
Value2,460 ms
5/100
30%
Value0.364
29/100
15%
Value24.7 s
0/100
10%
75 ms
181 ms
32 ms
294 ms
191 ms
Our browser made a total of 54 requests to load all elements on the main page. We found that 6% of them (3 requests) were addressed to the original Rollbar.com, 48% (26 requests) were made to D37gvrvc0wt4s1.cloudfront.net and 13% (7 requests) were made to Static.olark.com. The less responsive or slowest element that took the longest time to load (488 ms) relates to the external source Api.segment.io.
Page size can be reduced by 527.7 kB (48%)
1.1 MB
562.6 kB
In fact, the total size of Rollbar.com main page is 1.1 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. 35% of websites need less resources to load. Javascripts take 505.2 kB which makes up the majority of the site volume.
Potential reduce by 46.6 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. This page needs HTML code to be minified as it can gain 7.3 kB, which is 12% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 46.6 kB or 79% of the original size.
Potential reduce by 0 B
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. Rollbar images are well optimized though.
Potential reduce by 332.1 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 332.1 kB or 66% of the original size.
Potential reduce by 149.0 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. Rollbar.com needs all CSS files to be minified and compressed as it can save up to 149.0 kB or 82% of the original size.
Number of requests can be reduced by 19 (43%)
44
25
The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rollbar. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and as a result speed up the page load time.
rollbar.com
75 ms
rollbar.com
181 ms
rollbar.nojson.min.js
32 ms
2190651848.js
294 ms
styles.min.css
191 ms
all.min.js
188 ms
logo-white.png
184 ms
sprite-2x.png
169 ms
demo-screenshot.png
170 ms
heroku.png
203 ms
instacart.png
314 ms
lyft.png
317 ms
twitch.png
206 ms
zillow.png
316 ms
ethan-kennerly.png
319 ms
paul-bergeron.png
240 ms
brandon-leonardo.png
246 ms
matt-burke.png
278 ms
world-map.png
288 ms
techcrunch.png
437 ms
venturebeat.png
363 ms
gigaom.png
363 ms
producthunt.png
363 ms
f401df6f-54eb-406c-b46a-90b9451c598d.woff
338 ms
1e9892c0-6927-4412-9874-1b82801ba47a.woff
227 ms
f26faddb-86cc-4477-a253-1e1287684336.woff
241 ms
glyphicons-halflings-regular.woff
365 ms
91b50bbb-9aa1-4d54-9159-ec6f19d14a7c.woff
375 ms
92b66dbd-4201-4ac2-a605-4d4ffc8705cc.woff
261 ms
analytics.min.js
162 ms
i
487 ms
p
488 ms
loader0.js
152 ms
adsct
141 ms
conversion_async.js
103 ms
analytics.js
89 ms
gtm.js
71 ms
5150bf6d718969000200036f.js
175 ms
linkid.js
24 ms
70 ms
collect
14 ms
collect
75 ms
9008-423-10-3698.js
35 ms
43 ms
ga-audiences
23 ms
c
187 ms
application2.js
81 ms
storage.html
27 ms
storage.js
28 ms
visits
168 ms
aaigJZ378TW7Lyqy873VgoAIGMUMTA84
202 ms
jquery.js
32 ms
f9f9621aef281a503d74de22b88ab1a5.css
47 ms
tracked_errors.json
43 ms
rollbar.com accessibility score
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
Buttons do not have an accessible name
Image elements do not have [alt] attributes
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
[id] attributes on active, focusable elements are not unique
Heading elements are not in a sequentially-descending order
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
List items (<li>) are not contained within <ul> or <ol> parent elements.
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.
rollbar.com 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
Browser errors were logged to the console
Page has valid source maps
rollbar.com 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
Image elements do not have [alt] attributes
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rollbar.com 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 Rollbar.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
rollbar.com
Open Graph data is detected on the main page of Rollbar. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: