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spacex.com screenshot

Report Summary

  • 68

    Performance

    Renders faster than
    80% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 69% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 95

    SEO

    Google-friendlier than
    91% of websites

spacex.com

SpaceX

Page Load Speed

1.6 sec in total

First Response

57 ms

Resources Loaded

1.1 sec

Page Rendered

434 ms

spacex.com screenshot

About Website

Click here to check amazing SpaceX content for United States. Otherwise, check out these important facts you probably never knew about spacex.com

SpaceX designs, manufactures and launches advanced rockets and spacecraft. The company was founded in 2002 to revolutionize space technology, with the ultimate goal of enabling people to live on other...

Visit spacex.com

Key Findings

We analyzed Spacex.com page load time and found that the first response time was 57 ms and then it took 1.6 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.

Performance Metrics

spacex.com performance score

68

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

37/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

44/100

25%

SI (Speed Index)

Value3.4 s

89/100

10%

TBT (Total Blocking Time)

Value100 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.287

42/100

15%

TTI (Time to Interactive)

Value3.7 s

90/100

10%

Network Requests Diagram

spacex.com

57 ms

www.spacex.com

42 ms

css_RIeh9HfE5KmxXtZkVl4u6wlTHe8dHQgZmWYAq3Xx5ks.css

33 ms

modernizr.min.js

31 ms

jquery.min.js

394 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that 57% of them (16 requests) were addressed to the original Spacex.com, 32% (9 requests) were made to Use.typekit.com and 7% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (394 ms) relates to the external source Ajax.googleapis.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 698.3 kB (18%)

Content Size

3.9 MB

After Optimization

3.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Spacex.com main page is 3.9 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 3.3 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 24.1 kB

  • Original 31.4 kB
  • After minification 29.7 kB
  • After compression 7.3 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 24.1 kB or 77% of the original size.

Image Optimization

-5%

Potential reduce by 170.4 kB

  • Original 3.3 MB
  • After minification 3.1 MB

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. SpaceX images are well optimized though.

JavaScript Optimization

-78%

Potential reduce by 226.7 kB

  • Original 292.4 kB
  • After minification 183.1 kB
  • After compression 65.7 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 226.7 kB or 78% of the original size.

CSS Optimization

-78%

Potential reduce by 277.1 kB

  • Original 354.2 kB
  • After minification 352.7 kB
  • After compression 77.2 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. Spacex.com needs all CSS files to be minified and compressed as it can save up to 277.1 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (42%)

Requests Now

19

After Optimization

11

  • Images
  • JavaScript
  • CSS

The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SpaceX. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

spacex.com

spacex.com

57 ms

www.spacex.com

www.spacex.com

42 ms

css_RIeh9HfE5KmxXtZkVl4u6wlTHe8dHQgZmWYAq3Xx5ks.css

css_RIeh9HfE5KmxXtZkVl4u6wlTHe8dHQgZmWYAq3Xx5ks.css

33 ms

modernizr.min.js

modernizr.min.js

31 ms

jquery.min.js

jquery.min.js

394 ms

js_3TykeRWpejhD4-J3vdlaNXdULg9xhOZhbsppK0o2bUs.js

js_3TykeRWpejhD4-J3vdlaNXdULg9xhOZhbsppK0o2bUs.js

30 ms

js_z50PBBwwy8amHu80bvCLq6l7UDbwQgWk2jmZfd5dL-o.js

js_z50PBBwwy8amHu80bvCLq6l7UDbwQgWk2jmZfd5dL-o.js

31 ms

js_4H_KQbRCUCjL67D7GPNC4uGvmFp9ijlKsF9IFCwHOMM.js

js_4H_KQbRCUCjL67D7GPNC4uGvmFp9ijlKsF9IFCwHOMM.js

342 ms

js_rv_BKYv7yieH0IgHddhWHDC-bWGan8yiJbusyOpr0mw.js

js_rv_BKYv7yieH0IgHddhWHDC-bWGan8yiJbusyOpr0mw.js

340 ms

rqk4hqp.js

rqk4hqp.js

388 ms

js_FDLG5HKbTyQNX-oQrvwc36R632V0sqlaGYeOTKlvEgE.js

js_FDLG5HKbTyQNX-oQrvwc36R632V0sqlaGYeOTKlvEgE.js

333 ms

ga.js

ga.js

259 ms

www.spacex.com

www.spacex.com

40 ms

logo.png

logo.png

182 ms

jason3_launch3.jpg

jason3_launch3.jpg

170 ms

f-21_booster3.2.jpg

f-21_booster3.2.jpg

178 ms

landing_from_helo_2.jpg

landing_from_helo_2.jpg

176 ms

fastest_growing_tn.jpg

fastest_growing_tn.jpg

161 ms

reusability_tn.jpg

reusability_tn.jpg

153 ms

homepage-news-multimedia2.jpg

homepage-news-multimedia2.jpg

161 ms

dcYbrlQWZ9M719D4kRtA76ClbUPvs2ArsY37s3XefL6ffFx8ggMdeMJ6Mk6fw6NuSh90iY83ZAlTifoRdhXtgM.woff

dcYbrlQWZ9M719D4kRtA76ClbUPvs2ArsY37s3XefL6ffFx8ggMdeMJ6Mk6fw6NuSh90iY83ZAlTifoRdhXtgM.woff

74 ms

G_gXTuKQSWcBGWBXcIBo1LbJTGZvuSmY1Qa6NKSuFFqff5Y8ggMdeMJ6Mk6fw6NuSh90iY83ZAlTifoRdhXtgb.woff

G_gXTuKQSWcBGWBXcIBo1LbJTGZvuSmY1Qa6NKSuFFqff5Y8ggMdeMJ6Mk6fw6NuSh90iY83ZAlTifoRdhXtgb.woff

198 ms

wWmdu7ZJYxhnZbVGzOhlTlYrrfdSxy0oZ8s2vMiEH4qffFa8ggMdeMJ6Mk6fw6NuSh90iY83ZAlTifoRdhXtM3.woff

wWmdu7ZJYxhnZbVGzOhlTlYrrfdSxy0oZ8s2vMiEH4qffFa8ggMdeMJ6Mk6fw6NuSh90iY83ZAlTifoRdhXtM3.woff

197 ms

uJZismyI5NTkUu1wrMFuGf6BG_YXKeiFwrgyMbyFokIff5V8ggMdeMJ6Mk6fw6NuSh90iY83ZAlTifoRdhXtg3.woff

uJZismyI5NTkUu1wrMFuGf6BG_YXKeiFwrgyMbyFokIff5V8ggMdeMJ6Mk6fw6NuSh90iY83ZAlTifoRdhXtg3.woff

198 ms

__utm.gif

__utm.gif

127 ms

L-PNSnLKX9Fe9uGfNDdv5SANLni9oKYPsipKWS1Ipq3ff528ggMdeMJ6Mk6fw6NuSh90iY83ZAlTifoRdhXt26.woff

L-PNSnLKX9Fe9uGfNDdv5SANLni9oKYPsipKWS1Ipq3ff528ggMdeMJ6Mk6fw6NuSh90iY83ZAlTifoRdhXt26.woff

10 ms

GYGFEN-oCDRrb7ffyM-JbmjDERAT3WOchPqY0o5NJxXffF-gggMdeMJ6Mk6fw6NuSh90iY83ZAlTifoRdhXtM3.woff

GYGFEN-oCDRrb7ffyM-JbmjDERAT3WOchPqY0o5NJxXffF-gggMdeMJ6Mk6fw6NuSh90iY83ZAlTifoRdhXtM3.woff

11 ms

4JgxjkC_lXL3JM11H6tOXA9-MKVvuxDE2ucPLZeZ-OjffFPgggMdeMJ6Mk6fw6NuSh90iY83ZAlTifoRdhXtgM.woff

4JgxjkC_lXL3JM11H6tOXA9-MKVvuxDE2ucPLZeZ-OjffFPgggMdeMJ6Mk6fw6NuSh90iY83ZAlTifoRdhXtgM.woff

10 ms

Accessibility Review

spacex.com accessibility score

88

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

spacex.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

spacex.com SEO score

95

Search Engine Optimization Advices

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Spacex.com 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 Spacex.com 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

spacex.com

Open Graph data is detected on the main page of SpaceX. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: