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pbs.org: PBS: Public Broadcasting Service

Watch full episodes of your favorite PBS shows, explore music and the arts, find in-depth news analysis, and more. Home to Antiques Roadshow, Frontline, NOVA, PBS Newshour, Masterpiece and many others...

Page load speed analysis

  • 54/100

    Normal result
  • 6

    Successful tests
  • 2

    Failed tests
  • First response

    62 ms

  • Resources loaded

    47.6 sec

  • Page rendered

    40.1 sec

  • Total page load time

    87.7 sec

Click here to check amazing PBS content for United States. Otherwise, check out these important facts you probably never knew about pbs.org

We analyzed Pbs.org page load time and found that the first response time was 62 ms and then it took 87.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Page optimization

  • HTML 219.1 kB
    Images 3.0 MB
    Javascripts 1.4 MB
    CSS 884.7 kB

    In fact, the total size of Pbs.org main page is 5.5 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. 70% of websites need less resources to load. Images take 3.0 MB which makes up the majority of the site volume.

    • Original 219.1 kB
    • After minification 213.0 kB
    • After compression 40.2 kB

    HTML optimization

    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 178.9 kB or 82% of the original size.

    • Original 3.0 MB
    • After optimization 2.9 MB

    Image optimization

    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. PBS images are well optimized though.

    • Original 1.4 MB
    • After minification 1.4 MB
    • After compression 471.5 kB

    JavaScript optimization

    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 975.6 kB or 67% of the original size.

    • Original 884.7 kB
    • After minification 868.8 kB
    • After compression 148.2 kB

    CSS optimization

    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. Pbs.org needs all CSS files to be minified and compressed as it can save up to 736.5 kB or 83% of the original size.

Network requests diagram

  • pbs.org
  • www.pbs.org
  • global.d8d9424cba82.css
  • home.ba7dbc0b2cc5.css
  • css
  • localize.js
  • localization.js
  • jquery.05a97b7d5309.js
  • common.17718010594f.js
  • home.ce997a1826b6.js
  • gpt.js
  • f914b510-bb17-4674-a2a1-8b6824300762.jpg.focalcrop.767x431.50.10.jpg
  • container-shadow.852bd30ab916.png
  • logo-pbs-kids.68a4a83d8cc9.png
  • logo-pbs-learning-media.5ceff18af299.png
  • logo-pbs.faa8a2afcda6.png
  • f8fafa48-d87c-4c7c-876c-2aa0cf53dec5.png.resize.380x190.png
  • 1f371dd2-1ca6-4c69-a2b5-608646eed902.png.resize.380x190.png
  • 6a2dc19e-48a7-47a5-a021-b4b83d8028df.png.resize.380x190.png
  • 64974eec-4ad1-427e-8882-f8575580c153.png.resize.380x190.png
  • gtm.js
  • play.4a9e8e990628.svg
  • localization.css
  • pubads_impl_147.js
  • cJZKeOuBrn4kERxqtaUH3T8E0i7KZn-EPnyo3HZu7kw.woff
  • DXI1ORHCpsQm3Vp6mXoaTXhCUOGz7vYGh680lGh-uXM.woff
  • MTP_ySUJH_bn48VBG8sNSnhCUOGz7vYGh680lGh-uXM.woff
  • k3k702ZOKiLJc3WVjuplzHhCUOGz7vYGh680lGh-uXM.woff
  • 0Aa8aBJcGN1n1zDNhqNrnQ.woff
  • analytics.js
  • f914b510-bb17-4674-a2a1-8b6824300762.jpg.focalcrop.1280x487.50.10.jpg
  • ga.js
  • d2fteil91qipmn.cloudfront.net
  • moatcontent.js
  • fbevents.js
  • activityi;src=4368391;type=pbsrt740;cat=pbsma671;ord=1422973007313;~oref=http%3A%2F%2Fwww.pbs.org%2F
  • linkid.js
  • pixel
  • __utm.gif
  • container.html
  • collect
  • x30119r5700027
  • w5kx
  • lb
  • Ping.aspx
  • weta-color-logo-iZbJH8k.png.resize.80x39.png
  • collect
  • 492061434251936
  • collect
  • collect
  • pixel.gif
  • collect
  • social-media__bg--lg.1c822dc1de94.jpg
  • match-result
  • match-result
  • 980665891977295
  • pixel.gif
  • weta-color-logo-iZbJH8k.png.resize.106x106.png
  • OLgzRsBe6zn46o74aL1uQ.jpg.crop.140x210.jpg
  • 863bbaf4-f5c7-47ce-bb1d-759fa5783f77.jpg.focalcrop.1280x487.50.10.jpg
  • e2ef7244-2ccc-4e16-8c43-483fac970ac6.jpg.focalcrop.1280x487.50.10.jpg

Our browser made a total of 65 requests to load all elements on the main page. We found that 3% of them (2 requests) were addressed to the original Pbs.org, 17% (11 requests) were made to Image.pbs.org and 17% (11 requests) were made to Di30d2kxyxn22.cloudfront.net. The less responsive or slowest element that took the longest time to load (15.5 sec) relates to the external source Z.moatads.com.

Additional info on pbs.org

Requests

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of PBS. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

15

Javascripts

31

Images

4

CSS

4

AJAX

54

All

Possible request optimization

1

Javascripts

16

Images

1

CSS

4

AJAX

32

Optimized

22

All

Normal result

Redirects

As for redirects, our browser was forwarded to http://www.pbs.org/ before it reached this domain.

IP address

Pbs.org uses IP addresses which are currently shared with 14 other domains. The more sites share the same stack of IP addresses, the higher the host server’s workload is. It is strongly recommended that the host server should be changed or the hosting provider should be requested to give a different (separate) IP address for this domain.

Normal result

IP Trace

pbs.org

sat.gob.mx

mapmyrun.com

hoshinoya.com

kiilife.jp

99.84.181.103

pbs.org

cyzowoman.com

aidells.com

mediasuper.com.au

osx86.net

99.84.181.104

pbs.org

cyzowoman.com

salsanewyork.com

customink.com

hoshinoya.com

99.84.181.113

DNS records

Type Host Target/ip TTL Other
A

pbs.org

54.225.206.152 3600
A

pbs.org

54.225.198.196 3600
NS

pbs.org

ns-193.awsdns-24.com 86400
NS

pbs.org

ns-806.awsdns-36.net 86400
NS

pbs.org

ns-1230.awsdns-25.org 86400

HTTPS certificate

SSL Certificate

Pbs.org has no SSL certificate. Web browsing can be safer with HTTPS connection, so we suggest that it should be obtained for this site.

Poor result

Visitor World Map

Country of origin for 76.7% of all visits is United States. It’s good for Pbs.org that their server is also located in United States, as that enables the majority of their visitors to benefit from a much faster page load time.

Good result

Good result

Social Sharing Optimization

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

pbs.org

Language and encoding

Good result

Language

EN en language flag

Detected

EN en language flag

Claimed

Encoding

UTF-8

Claimed

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

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