11.2 sec in total
267 ms
10.2 sec
709 ms
Click here to check amazing Rochester Astronomy content for Costa Rica. Otherwise, check out these important facts you probably never knew about rochesterastronomy.org
Visit rochesterastronomy.orgWe analyzed Rochesterastronomy.org page load time and found that the first response time was 267 ms and then it took 10.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.
rochesterastronomy.org performance score
name
value
score
weighting
Value2.8 s
57/100
10%
Value9.6 s
0/100
25%
Value7.7 s
25/100
10%
Value800 ms
36/100
30%
Value0.453
20/100
15%
Value13.4 s
11/100
10%
267 ms
226 ms
127 ms
57 ms
151 ms
Our browser made a total of 86 requests to load all elements on the main page. We found that 93% of them (80 requests) were addressed to the original Rochesterastronomy.org, 2% (2 requests) were made to Fonts.googleapis.com and 2% (2 requests) were made to Cleardarksky.com. The less responsive or slowest element that took the longest time to load (8.4 sec) belongs to the original domain Rochesterastronomy.org.
Page size can be reduced by 1.7 MB (46%)
3.7 MB
2.0 MB
In fact, the total size of Rochesterastronomy.org main page is 3.7 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. 40% of websites need less resources to load. Images take 1.7 MB which makes up the majority of the site volume.
Potential reduce by 44.0 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 8.8 kB, which is 15% 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 44.0 kB or 73% of the original size.
Potential reduce by 53.2 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. Rochester Astronomy images are well optimized though.
Potential reduce by 1.3 MB
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 1.3 MB or 79% of the original size.
Potential reduce by 311.9 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. Rochesterastronomy.org needs all CSS files to be minified and compressed as it can save up to 311.9 kB or 88% of the original size.
Number of requests can be reduced by 54 (66%)
82
28
The browser has sent 82 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rochester Astronomy. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 30 to 1 for JavaScripts and from 19 to 1 for CSS and as a result speed up the page load time.
www.rochesterastronomy.org
267 ms
default.css
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SearchSkinObjectPreview.css
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module.css
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skin.css
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container.css
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portal.css
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prettyPhoto.css
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rochesterastronomy.org 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.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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.
rochesterastronomy.org best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Issues were logged in the Issues panel in Chrome Devtools
rochesterastronomy.org 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
Tap targets are not sized appropriately
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rochesterastronomy.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 Rochesterastronomy.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.
rochesterastronomy.org
Open Graph description is not detected on the main page of Rochester Astronomy. 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: