2.8 sec in total
277 ms
2 sec
474 ms
Visit vatsim.net now to see the best up-to-date VATSIM content for United States and also check out these interesting facts you probably never knew about vatsim.net
VATSIM is the Virtual Air Traffic Simulation network, connecting people from around the world flying online or acting as virtual Air Traffic Controllers.
Visit vatsim.netWe analyzed Vatsim.net page load time and found that the first response time was 277 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
vatsim.net performance score
name
value
score
weighting
Value3.0 s
48/100
10%
Value3.1 s
75/100
25%
Value4.8 s
67/100
10%
Value180 ms
91/100
30%
Value0.217
57/100
15%
Value9.1 s
33/100
10%
277 ms
443 ms
91 ms
181 ms
270 ms
Our browser made a total of 38 requests to load all elements on the main page. We found that 71% of them (27 requests) were addressed to the original Vatsim.net, 16% (6 requests) were made to Stats.vatsim.net and 5% (2 requests) were made to Cdn.jsdelivr.net. The less responsive or slowest element that took the longest time to load (910 ms) belongs to the original domain Vatsim.net.
Page size can be reduced by 403.7 kB (18%)
2.3 MB
1.9 MB
In fact, the total size of Vatsim.net main page is 2.3 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. Images take 2.0 MB which makes up the majority of the site volume.
Potential reduce by 23.4 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 23.4 kB or 76% of the original size.
Potential reduce by 166.7 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. VATSIM images are well optimized though.
Potential reduce by 78.9 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 78.9 kB or 80% of the original size.
Potential reduce by 134.6 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. Vatsim.net needs all CSS files to be minified and compressed as it can save up to 134.6 kB or 80% of the original size.
Number of requests can be reduced by 13 (37%)
35
22
The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of VATSIM. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.
vatsim.net
277 ms
www.vatsim.net
443 ms
css_lQaZfjVpwP_oGNqdtWCSpJT1EMqXdMiU84ekLLxQnc4.css
91 ms
css_6zemUaNACzZ5sPLowbJJP0jVAcgeofg1dmXJdb1dfGY.css
181 ms
css_H1ogUnEtCXOy7mQRgrdbN3Cn92FFyfo6uc5ZRvmmDkU.css
270 ms
bootstrap.min.css
46 ms
font-awesome.min.css
43 ms
css_umMfX3nY48cq1WQ3J31GAyu_hd24jmppF6IwCabwmb4.css
270 ms
css_6WQd7_lnOfNdzAfBH0kCI385XSapl3oKAjNOtmTNVpM.css
271 ms
jquery.min.js
81 ms
js_3TykeRWpejhD4-J3vdlaNXdULg9xhOZhbsppK0o2bUs.js
288 ms
js_yAicZujtqUhpCyuBiQyVA1uGwMX8V0A0ym_4Jb35kBQ.js
291 ms
bootstrap.min.js
55 ms
js_MzkJyzjog457wpPuHdIs6FaKoJx31sm4LQsZa0OvSlM.js
296 ms
js_kLhR20mEjqExN9k0kSQn_PvX360rxd2xeYF5S2jBefQ.js
355 ms
js_bi2B-iN3tZFTB3aHWbbdMCAwRv6PBpE0BxEEHa_UUqI.js
355 ms
js_L50O_PWoAuMOxVjnzZCkNSSmI0kFwhZsO1_KS8WnGKw.js
405 ms
user_count_json.php
514 ms
connection_pilot.png
489 ms
connection_atc.png
486 ms
connection_atis.png
496 ms
connection_sup.png
494 ms
connection_obs.png
496 ms
vatsim_0.png
200 ms
1.jpg
910 ms
pilot.png
94 ms
atc.png
91 ms
join.png
91 ms
favicon.ico
94 ms
ch_pm_qYeCEnI.jpg
268 ms
12769423_465296470334619_1674942130_n.jpg
197 ms
XdFz57f.png
554 ms
NelsonAndInvercargill_PW5jzDr.jpg
199 ms
1401-Capital-sunday-LSZB-fly-160306.gif
303 ms
ukbb.png
639 ms
facebook.png
302 ms
twitter.png
358 ms
fontawesome-webfont.woff
5 ms
vatsim.net 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
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
vatsim.net 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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
vatsim.net 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
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vatsim.net can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Vatsim.net 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.
vatsim.net
Open Graph description is not detected on the main page of VATSIM. 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: