Tools & Wizards About Us

Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 75% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 64

    SEO

    Google-friendlier than
    24% of websites

ssb.stsci.edu

SSB Downloads

Page Load Speed

508 ms in total

First Response

141 ms

Resources Loaded

184 ms

Page Rendered

183 ms

About Website

Visit ssb.stsci.edu now to see the best up-to-date SSB Stsci content for United States and also check out these interesting facts you probably never knew about ssb.stsci.edu

Visit ssb.stsci.edu

Key Findings

We analyzed Ssb.stsci.edu page load time and found that the first response time was 141 ms and then it took 367 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Performance Metrics

ssb.stsci.edu performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.1 s

99/100

10%

LCP (Largest Contentful Paint)

Value1.1 s

100/100

25%

SI (Speed Index)

Value1.1 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.1 s

100/100

10%

Network Requests Diagram

ssb.stsci.edu

141 ms

cstyle.css

27 ms

download_server_logo.png

32 ms

bg_grad.jpg

15 ms

Our browser made a total of 4 requests to load all elements on the main page. We found that all of those requests were addressed to Ssb.stsci.edu and no external sources were called. The less responsive or slowest element that took the longest time to load (141 ms) belongs to the original domain Ssb.stsci.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.7 kB (33%)

Content Size

11.3 kB

After Optimization

7.5 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Ssb.stsci.edu main page is 11.3 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 7.1 kB which makes up the majority of the site volume.

HTML Optimization

-53%

Potential reduce by 983 B

  • Original 1.9 kB
  • After minification 1.7 kB
  • After compression 872 B

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 983 B or 53% of the original size.

Image Optimization

-13%

Potential reduce by 897 B

  • Original 7.1 kB
  • After minification 6.2 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. Obviously, SSB Stsci needs image optimization as it can save up to 897 B or 13% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-80%

Potential reduce by 1.8 kB

  • Original 2.3 kB
  • After minification 1.1 kB
  • After compression 463 B

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. Ssb.stsci.edu needs all CSS files to be minified and compressed as it can save up to 1.8 kB or 80% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

3

After Optimization

3

  • Images
  • CSS

The browser has sent 3 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SSB Stsci. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

ssb.stsci.edu accessibility score

90

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

ssb.stsci.edu best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

ssb.stsci.edu SEO score

64

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ssb.stsci.edu can be misinterpreted by Google and other search engines. Our service has detected that English 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 Ssb.stsci.edu 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.

Social Sharing Optimization

Open Graph description is not detected on the main page of SSB Stsci. 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: