2.1 sec in total
281 ms
1.5 sec
271 ms
Visit astronomy.tw now to see the best up-to-date Astronomy content and also check out these interesting facts you probably never knew about astronomy.tw
Visit astronomy.twWe analyzed Astronomy.tw page load time and found that the first response time was 281 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.
astronomy.tw performance score
name
value
score
weighting
Value2.8 s
55/100
10%
Value4.6 s
34/100
25%
Value4.1 s
78/100
10%
Value1,830 ms
9/100
30%
Value0
100/100
15%
Value6.5 s
59/100
10%
281 ms
535 ms
47 ms
70 ms
36 ms
Our browser made a total of 39 requests to load all elements on the main page. We found that 5% of them (2 requests) were addressed to the original Astronomy.tw, 21% (8 requests) were made to Google.com and 18% (7 requests) were made to Translate.googleapis.com. The less responsive or slowest element that took the longest time to load (535 ms) belongs to the original domain Astronomy.tw.
Page size can be reduced by 258.0 kB (49%)
526.2 kB
268.2 kB
In fact, the total size of Astronomy.tw main page is 526.2 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. 60% of websites need less resources to load. Javascripts take 396.1 kB which makes up the majority of the site volume.
Potential reduce by 51.7 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 51.7 kB or 77% of the original size.
Potential reduce by 519 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, Astronomy needs image optimization as it can save up to 519 B or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 165.1 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 165.1 kB or 42% of the original size.
Potential reduce by 40.6 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. Astronomy.tw needs all CSS files to be minified and compressed as it can save up to 40.6 kB or 70% of the original size.
Number of requests can be reduced by 27 (77%)
35
8
The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 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 17 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
astronomy.tw
281 ms
www.astronomy.tw
535 ms
webfont.js
47 ms
3375562265-css_bundle_v2.css
70 ms
gsearch.css
36 ms
authorization.css
129 ms
stblogger2.js
32 ms
element.js
63 ms
3731899860-widgets.js
105 ms
plusone.js
75 ms
jsapi
34 ms
css
25 ms
paging_dot.png
25 ms
jquery-1.4.2.min.js
10 ms
icon18_wrench_allbkg.png
22 ms
translateelement.css
56 ms
main.js
149 ms
buttons.js
25 ms
EFpQQyG9GqCrobXxL-KRMfEr6Hm6RMS0v1dtXsGir4g.ttf
108 ms
xgzbb53t8j-Mo-vYa23n5onF5uFdDttMLvmWuJdhhgs.ttf
109 ms
cb=gapi.loaded_0
75 ms
62 ms
getAllAppDefault.esi
149 ms
clear.gif
39 ms
element_main.js
54 ms
default+zh_TW.css
21 ms
default+zh_TW.I.js
26 ms
translate_24dp.png
111 ms
l
75 ms
cleardot.gif
104 ms
async-ads.js
148 ms
getSegment.php
162 ms
checkOAuth.esi
42 ms
small-logo.png
33 ms
te_ctrl3.gif
10 ms
googlelogo_color_68x28dp.png
10 ms
loading.gif
19 ms
te_bk.gif
25 ms
t.dhj
59 ms
astronomy.tw accessibility score
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
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
astronomy.tw best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
astronomy.tw SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
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
ZH
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Astronomy.tw can be misinterpreted by Google and other search engines. Our service has detected that Chinese 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 Astronomy.tw 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.
astronomy.tw
Open Graph description is not detected on the main page of 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: