jsdelivr.com Domain Owner Whois and Analysis

DOMAIN OWNER WHOIS

ⓘ The owner has chosen to keep his whois contact information private.

• Contact Name

WhoisGuard Protected

• Organization

WhoisGuard, Inc.

• Address

P.O. Box 0823-03411

• City

Panama

• State

Panama

• Country Code

PA

• Phone Number

Show phone

• Email

Show email

• Domain Registrar

NameCheap, Inc.
See Domain Dates and Nameservers
See Server Details

PERFORMANCE OPPORTUNITIES

Make your meta description eloquent and appealing, neither too short nor too long.

Make all versions of your website point to the same URL.

OVERVIEW

• Domain Owner

Private

• Category

Technology & Computing > JavaScript

• Online since

May 16, 2012 Explore Wayback Machine

• Age

11 years, 11 months, 13 days

• Alexa Rank

#41.520, jsdelivr.com is in the world's top 50.000 websites!

FREE FORM BUILDER

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TECHNICAL SEO & SECURITY

❌ SSL Certificate

This website is not SSL secured (HTTPS), the certificate issued by COMODO CA Limited has expired on March 14, 2020.

✅ Title Tag

jsDelivr - A free, fast, and reliable Open Source CDN for npm & GitHub
Length: 74 (recommended: 10 to 70)

❌ Meta Description

A free, fast, and reliable Open Source CDN for npm and GitHub with the largest network and best performance among all CDNs. Serving more than 20 billion requests per month.
Length: 172 (recommended: 50 to 160)

ⓘ Google preview

Desktop Version

jsDelivr - A free, fast, and reliable Open Source CDN for npm & Gi...

https://jsdelivr.com

A free, fast, and reliable Open Source CDN for npm and GitHub with the largest network and best performance among all CDNs. Serving more than 20 billion requests per...

Mobile Version

https://jsdelivr.com

jsDelivr - A free, fast, and reliable Open Source CDN for npm & Gi...

A free, fast, and reliable Open Source CDN for npm and GitHub with the largest network and best performance among all CDNs. Servin...

✅ Encoding

Great, language/character encoding is specified: utf-8

❌ URL Resolve

No 301 redirects are in place to redirect traffic to your preferred domain. Pages that load successfully both with and without www. are treated as duplicate content! Not all versions of your page point to the same URL.

URL	Resolved URL
http://jsdelivr.com	https://www.jsdelivr.com/
https://jsdelivr.com	https://www.jsdelivr.com/
http://www.jsdelivr.com	http://www.jsdelivr.com/
https://www.jsdelivr.com	https://www.jsdelivr.com/

✅ Robots.txt

https://www.jsdelivr.com/robots.txt

✅ URL Parameters

Great, the domain URLs look clean.

Attribute	Value
ⓘ viewport	width=device-width, initial-scale=1

SEMANTIC ANALYSIS

ⓘ The owner has associated the following topics to the website.

ⓘ The results of our semantic analysis are shown below using the website's language.

They are the main concepts covered by jsdelivr.com.

Each concept has a confidence score. The higher it is, the more important the topic is relative to the page.

Topics

GitHub Confidence: 89%

GitHub is a web-based Git or version control repository and Internet hosting service. It offers all of the distributed version control and source code management (SCM) functionality of Git as well as adding its own features. It provides access control and several collaboration features such as bug tracking, feature requests, task management, and wikis for every project.

Open-source model Confidence: 83%

The open-source model is a decentralized development model that encourages open collaboration. A main principle of open-source software development is peer production, with products such as source code, blueprints, and documentation freely available to the public. The open-source movement in software began as a response to the limitations of proprietary code. The model is used for projects such as in open-source appropriate technologies, and open-source drug discovery.

Npm (software) Confidence: 81%

npm is the default package manager for the JavaScript runtime environment Node.js. History. npm is written entirely in JavaScript and was developed by Isaac Z. Schlueter as a result of having "seen module packaging done terribly" and with inspiration from the shortcomings of other similar projects such as PHP (PEAR) and Perl (CPAN).

Computer network Confidence: 71%

A computer network or data network is a telecommunications network which allows nodes to share resources. In computer networks, networked computing devices exchange data with each other using a data link. The connections between nodes are established using either cable media or wireless media. The best-known computer network is the Internet.

Free software Confidence: 71%

Free software, freedom-respecting software, or software libre is computer software distributed under terms that allow the software users to run the software for any purpose as well as to study, change, and distribute the software and any adapted versions. Free software is a matter of liberty, not price: users, individually or collectively, are free to do what they want with it, including the freedom to redistribute the software free of charge, or to sell it, or charge for related services such as support or warranty for profit.

WEBSITE SPEED

✅ jsdelivr.com website speed is fast. Page speed is important for visitors and search engines.

Get insights to improve your page loading time.

Page Loading Time

2s

This domain loads at the median speed of 2 seconds.

Speed Percentile

41%

jsdelivr.com is faster than approximately 41 percent of the web. Your website page speed needs to be as fast as you can make it, without compromising the customer experience.

A good goal to achieve is a loading time of 2 seconds on desktop and mobile devices.

PAGESPEED INSIGHTS

Page on which speed is tested live:

Chrome User Experience Report Results

Lighthouse Results

TRAFFIC

ⓘ This website is ranked #41.520 by Alexa.

This rank is traffic based. The lower the rank is, the better the domain is ranked.

Daily visitors by country

India (17.6%)
Turkey (4.2%)
United States of America (14.0%)
Iran (Islamic Republic of) (7.1%)
Brazil (5.7%)
Canada (4.4%)
Others (47%)

Traffic country ranks

Country	Rank
Viet Nam	#14.260
India	#19.089
Indonesia	#16.263
Egypt	#16.423
Bangladesh	#17.627
Turkey	#13.405
Russian Federation	#109.582
Taiwan	#15.463
Pakistan	#17.754
United States of America	#49.809
Iran (Islamic Republic of)	#13.719
Nigeria	#14.242
Brazil	#22.219
Algeria	#12.987
Canada	#20.006

LAYOUT

ⓘ Doctype HTML5

ⓘ Responsive website, mobile-friendly.

Mobile Rendering

This website seems to be optimized for Mobile Visitors.

Phone
How jsdelivr.com looks like on a mobile device such as an iPhone.

Tablet
How jsdelivr.com looks like on a tablet such as an iPad.

Main colors used

ⓘ These are the main HTML color codes used by this website.

23% #202020
15% #f08050
13% #ffffff
10% #f07040
7% #303030
6% #ff9050
4% #ffb060
4% #f0f0f0
3% #404030
3% #1090f0
2% #ff7040
2% #505040

Text/code ratio

ⓘ jsdelivr.com's text/code ratio is 12.45%. It's a bit low. Consider raising it by adding more text content of value for your visitors, or keeping your code clean.

Text / Code Ratio 12.45%

A good text to HTML ratio is anywhere from 25 to 70%.

This percentage refers to the visible text ratio, as opposed to HTML elements, image tags and other non-visible information.

Main HTML tags

✅ Headings

Great, we found headings on this page.

<H1> 1
<H2> 4
<H3> 1
<H4> 0
<H5> 0
<H6> 0

<H1>

Top level heading
Jsdelivr – open source cdn

<H2>

2^nd level heading
Free, fast, and reliable
Built for production
Developer friendly
Jsdelivr uses real user metrics (rum) to accurately load-balance traffic between multiple cdn providers

<H3>

3^rd level heading
Jsdelivr is used by

❌ Alt attributes

We found 23 images on this website.
23 ALT attributes are missing on your image tags.

Image	Image URL	Occurrences
	/img/logo-horizontal.svg	1
	/img/landing/npm.png	1
	/img/landing/github.png	1
	/img/landing/wordpress.png	1
	/img/landing/stackpath.png	1
	/img/landing/cloudflare.png	1
	/img/landing/fastly.png	1
	/img/landing/ns1.png	1
	/img/landing/perfops.svg	1
	/img/algolia.png	1
	/img/landing/infographic-bg.png	1
	/img/landing/built-for-production-icon.png	1
	/img/landing/network-map.png	1
	/img/landing/developer-friendly-icon.png	1
	/img/used-by/mozilla.png	1
	/img/used-by/urban-dictionary.png	1
	/img/used-by/the-new-york-times.png	1
	/img/used-by/nbc.png	1
	/img/used-by/britannica.png	1
	/img/footer/prospect-one.png	1
	/img/footer/quantil.png	1
	/img/footer/dnsperf.png	1
	/img/footer/cdnperf.png	1

Alternative text allows you to add a description to an image.

Google rely on alternative text attributes to determine relevance to a search query. Alternative text also makes an image more likely to appear in a Google image search.

It looks like you're missing alternative text for 23 images on jsdelivr.com. Check your website to make sure it's specified for each image on the page.

LINKS

ⓘ There is a total of 53 links on the homepage of this website.

ⓘ Internal links : 27

Anchor	Type	URL
	image	/
Features	text	/features
Network	text	/network
Stats	text	/statistics
Sponsors	text	/sponsors
Debug tool	text	/tools/debug
Purge cache	text	/tools/purge
Blog	text	/blog/
CHECK OUR INFOGRAPHIC	text	/network/infographic
four CDN & two DNS providers	text	/network
RUM based load balancing	text	/network
See more stats	text	/statistics
npm/ slick-carousel	text	/package/npm/slick-carousel
npm/ yandex-metrica-watch	text	/package/npm/yandex-metrica-watch
npm/ prebid-universal-creative	text	/package/npm/prebid-universal-creative
npm/ emojione	text	/package/npm/emojione
npm/ bootstrap	text	/package/npm/bootstrap
npm/ hls.js	text	/package/npm/hls.js
npm/ jquery	text	/package/npm/jquery
npm/ font-awesome	text	/package/npm/font-awesome
npm/ vue	text	/package/npm/vue
npm/ algoliasearch	text	/package/npm/algoliasearch
all files from npm and GitHub available with zero setup	text	/features
Our sponsors	text	/sponsors
About	text	/about
Privacy Policy	text	/privacy-policy
dak@prospectone.io	text	mailto:dak@prospectone.io

ⓘ External links : 26

Anchor	Type	URL
Looking for contributors! Help us build CMS plugins, IDE integrations, other tools, or promote jsDel...	text	https://github.com/jsdelivr/jsdelivr/issues/18091
CDNPerf	text	https://cdnperf.com
DNSPerf	text	https://dnsperf.com
Newsletter	text	https://jsdelivr.us11.list-manage.com/subscribe?u=0c85fe2c9a60310df9a3d6751&id=283887f736
No anchor	empty	https://github.com/jsdelivr/jsdelivr
No anchor	empty	https://twitter.com/jsdelivr
https://cdn.jsdelivr.net/npm/jquery@3.2.1/dist/jquery.min.js	text	https://cdn.jsdelivr.net/npm/jquery@3.2.1/dist/jquery.min.js
https://cdn.jsdelivr.net/npm/jquery@3.2/dist/jquery.min.js	text	https://cdn.jsdelivr.net/npm/jquery@3.2/dist/jquery.min.js
https://cdn.jsdelivr.net/npm/jquery@3/dist/jquery.min.js	text	https://cdn.jsdelivr.net/npm/jquery@3/dist/jquery.min.js
https://cdn.jsdelivr.net/npm/jquery/dist/jquery.min.js	text	https://cdn.jsdelivr.net/npm/jquery/dist/jquery.min.js
https://cdn.jsdelivr.net/npm/jquery@3.2.1/src/core.min.js	text	https://cdn.jsdelivr.net/npm/jquery@3.2.1/src/core.min.js
https://cdn.jsdelivr.net/npm/jquery@3.2	text	https://cdn.jsdelivr.net/npm/jquery@3.2
https://cdn.jsdelivr.net/npm/jquery/	text	https://cdn.jsdelivr.net/npm/jquery/
	image	https://www.stackpath.com
	image	https://www.cloudflare.com
	image	https://www.fastly.com
	image	https://ns1.com
	image	https://perfops.net/
	image	https://www.algolia.com
faster than any other CDN	text	https://www.cdnperf.com
usage statistics	text	https://github.com/jsdelivr/data.jsdelivr.com
API	text	https://github.com/jsdelivr/data.jsdelivr.com
	image	https://prospectone.io/
	image	https://www.quantil.com/
	image	https://www.dnsperf.com
	image	https://www.cdnperf.com

SOCIAL MEDIA PRESENCE

✅ This is an overview of your homepage shares on social networks.

You're doing quiet good on social media!

Social shares are a key signal, among many others, that search engines use to evaluate the rankings of a website. Asking people to share your pages, adding visible social share buttons and make great quality content are 3 of the most powerful ways to grow your social presence.

Facebook
Total Engagement 474
Likes 19
Shares 424
Comments 31

DOMAIN REGISTRAR

ⓘ Domain Registrar	NAMECHEAP, INC.
ⓘ Registration Date	05/16/2012 11 years, 11 months, 13 days ago
ⓘ Last Modified	01/25/2018 6 years, 3 months ago
ⓘ Expiration Date	05/16/2021 Expired