1.7 sec in total
151 ms
1.3 sec
214 ms
Visit opticsinfobase.org now to see the best up-to-date Opticsinfobase content for United States and also check out these interesting facts you probably never knew about opticsinfobase.org
Visit opticsinfobase.orgWe analyzed Opticsinfobase.org page load time and found that the first response time was 151 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.
opticsinfobase.org performance score
name
value
score
weighting
Value4.6 s
14/100
10%
Value17.1 s
0/100
25%
Value4.6 s
71/100
10%
Value870 ms
33/100
30%
Value0.127
82/100
15%
Value22.5 s
1/100
10%
151 ms
90 ms
34 ms
24 ms
59 ms
Our browser made a total of 226 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Opticsinfobase.org, 13% (30 requests) were made to Fonts.gstatic.com and 1% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (415 ms) relates to the external source Opg.optica.org.
Page size can be reduced by 112.6 kB (4%)
2.9 MB
2.7 MB
In fact, the total size of Opticsinfobase.org main page is 2.9 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. 85% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 2.5 MB which makes up the majority of the site volume.
Potential reduce by 63.7 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 63.7 kB or 79% of the original size.
Potential reduce by 15.8 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. Opticsinfobase images are well optimized though.
Potential reduce by 31.0 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 31.0 kB or 22% of the original size.
Potential reduce by 2.1 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. Opticsinfobase.org has all CSS files already compressed.
Number of requests can be reduced by 42 (70%)
60
18
The browser has sent 60 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Opticsinfobase. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 34 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.
opg.optica.org
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opticsinfobase.org 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
Links do not have a discernible name
opticsinfobase.org 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
Displays images with incorrect aspect ratio
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
opticsinfobase.org 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
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
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Opticsinfobase.org 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 Opticsinfobase.org 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.
opticsinfobase.org
Open Graph description is not detected on the main page of Opticsinfobase. 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: