1.6 sec in total
455 ms
575 ms
520 ms
Visit vaccines.net now to see the best up-to-date Vaccines content and also check out these interesting facts you probably never knew about vaccines.net
Visit vaccines.netWe analyzed Vaccines.net page load time and found that the first response time was 455 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.
vaccines.net performance score
name
value
score
weighting
Value2.7 s
61/100
10%
Value2.7 s
86/100
25%
Value4.6 s
70/100
10%
Value210 ms
89/100
30%
Value0.613
10/100
15%
Value7.4 s
48/100
10%
455 ms
179 ms
185 ms
186 ms
187 ms
Our browser made a total of 6 requests to load all elements on the main page. We found that all of those requests were addressed to Vaccines.net and no external sources were called. The less responsive or slowest element that took the longest time to load (455 ms) belongs to the original domain Vaccines.net.
Page size can be reduced by 2.8 kB (31%)
9.1 kB
6.3 kB
In fact, the total size of Vaccines.net main page is 9.1 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Images take 6.3 kB which makes up the majority of the site volume.
Potential reduce by 1.9 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 1.9 kB or 69% of the original size.
Potential reduce by 909 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. Obviously, Vaccines needs image optimization as it can save up to 909 B or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
We found no issues to fix!
5
5
The browser has sent 5 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vaccines. According to our analytics all requests are already optimized.
vaccines.net
455 ms
sumtextb.jpg
179 ms
newpage114.htm_cmp_sumipntg110_hbtn.gif
185 ms
newpage114.htm_cmp_sumipntg110_hbtn_a.gif
186 ms
newpage1.htm_cmp_sumipntg110_hbtn.gif
187 ms
newpage1.htm_cmp_sumipntg110_hbtn_a.gif
190 ms
vaccines.net accessibility score
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
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.
vaccines.net best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Browser errors were logged to the console
Page has valid source maps
vaccines.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
N/A
N/A
N/A
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vaccines.net can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Vaccines.net 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.
vaccines.net
Open Graph description is not detected on the main page of Vaccines. 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: