1.9 sec in total
45 ms
623 ms
1.2 sec
Welcome to rob.by homepage info - get ready to check Rob best content for United States right away, or after learning these important things about rob.by
Over the last three years I’ve been on both ends of job offers at startups. One thing that’s struck me is how little most applicants know about what …
Visit rob.byWe analyzed Rob.by page load time and found that the first response time was 45 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.
rob.by performance score
name
value
score
weighting
Value8.9 s
0/100
10%
Value11.0 s
0/100
25%
Value10.1 s
9/100
10%
Value1,920 ms
8/100
30%
Value0.55
13/100
15%
Value13.1 s
12/100
10%
45 ms
10 ms
16 ms
18 ms
22 ms
Our browser made a total of 56 requests to load all elements on the main page. We found that 25% of them (14 requests) were addressed to the original Rob.by, 20% (11 requests) were made to Public.slidesharecdn.com and 7% (4 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (269 ms) relates to the external source Slideshare.net.
Page size can be reduced by 298.2 kB (51%)
585.3 kB
287.1 kB
In fact, the total size of Rob.by main page is 585.3 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. 70% of websites need less resources to load. Javascripts take 261.7 kB which makes up the majority of the site volume.
Potential reduce by 46.9 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 46.9 kB or 74% of the original size.
Potential reduce by 1.2 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. Rob images are well optimized though.
Potential reduce by 171.8 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 171.8 kB or 66% of the original size.
Potential reduce by 78.2 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. Rob.by needs all CSS files to be minified and compressed as it can save up to 78.2 kB or 74% of the original size.
Number of requests can be reduced by 31 (63%)
49
18
The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rob. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.
rob.by
45 ms
screen.css
10 ms
data-table.css
16 ms
modernizr-2.0.js
18 ms
ender.js
22 ms
octopress.js
26 ms
css
28 ms
css
37 ms
css
45 ms
MathJax.js
23 ms
twitter.js
23 ms
background.png
12 ms
TeX-AMS-MML_HTMLorMML.js
23 ms
ga.js
21 ms
noise.png
20 ms
14130056
269 ms
count.js
104 ms
all.js
99 ms
widgets.js
97 ms
freerobby.json
97 ms
code_bg.png
92 ms
Home.png
94 ms
Calendar.png
92 ms
Envelope.png
90 ms
rss.png
92 ms
__utm.gif
47 ms
v0SdcGFAl2aezM9Vq_aFTQ.ttf
54 ms
DvlFBScY1r-FMtZSYIYoYw.ttf
54 ms
LqowQDslGv4DmUBAfWa2Vw.ttf
54 ms
HkF_qI1x_noxlxhrhMQYEKCWcynf_cDxXwCLxiixG1c.ttf
54 ms
button.0308b81ff1714e446f674b5b9793f2cd.js
87 ms
count-data.js
224 ms
count-data.js
232 ms
37 ms
xd_arbiter.php
27 ms
xd_arbiter.php
42 ms
follow_button.b9740740e0bcf9b0657c5b11bd4388da.en.html
12 ms
combined_jquery.js
22 ms
global.js
21 ms
combined_li_tracking.js
13 ms
font-awesome.css
33 ms
combined_presentation.css
35 ms
combined_player_presentation.js
35 ms
combined_old_embed.js
52 ms
beacon.js
67 ms
riak-at-shareaholic-1-728.jpg
180 ms
14130056
50 ms
1x1.gif
49 ms
logo_embed_20x20_v1.png
49 ms
lead-form
88 ms
__utm.gif
35 ms
fontawesome-webfont.woff
16 ms
__utm.gif
15 ms
icons.svg
7 ms
jot
96 ms
ping
10 ms
rob.by 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.
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
Image elements do not have [alt] attributes
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.
rob.by best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Requests the geolocation permission on page load
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
rob.by SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
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 Rob.by 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 Rob.by 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.
rob.by
Open Graph description is not detected on the main page of Rob. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: