khanacademy.org

Khan Academy | Free Online Courses, Lessons & Practice: Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere..

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khanacademy.org is a safe website about "Khan Academy Free Online Courses Lessons & Practice" in and category. The server is running at 151.101.1.42 ip address and there is a secure connection certificate between the website and the visitor. When we did a security search, no viruses or spam were detected on web page. have daily 1.1M and monthly 33.9M unique visitors from United States, India and Canada. While 42% of users browse the site for a long time, 58% exit immediately. Also, 58% of visitors come from search engines such as Google, Bing, Yandex. According to our financial situation analysis, this website earns an estimated daily $5K, weekly $22K and monthly $153K from online advertising. If you want to buy this domain, you need to revise $999568. Because the value of the website can range from at least $694356 to $1304779. The study.com, quizlet.com, mathsisfun.com, lumenlearning.com similar & alternative web sites to khanacademy.org.

Daily
Visitor
1.1M
Daily
Revenue
$5K
Monthly
Visitor
33.9M
Monthly
Revenue
$153K

Comments About khanacademy.org

khanacademy Server Status History

Date	Server Status	Speed
2023-05-21 09:06:32	Up	4.701 Second
2023-05-21 06:56:32	Up	10.31 Second
2023-05-21 04:46:26	Up	2.384 Second
2023-05-21 02:36:23	Down	0.097 Second
2023-05-21 00:26:30	Up	2.605 Second
2023-05-20 22:16:32	Up	2.842 Second
2023-05-20 20:06:24	Up	6.736 Second
2023-05-19 23:52:24	Up	5.682 Second
2023-05-19 21:42:32	Up	7.246 Second
2023-05-19 19:32:25	Up	4.022 Second
2023-05-19 17:22:29	Up	7.296 Second
2023-05-19 15:12:30	Up	7.932 Second
2023-05-19 13:02:23	Up	3.611 Second
2023-05-19 10:52:24	Up	0.423 Second
2023-05-19 08:42:24	Up	3.475 Second
2023-05-19 06:30:33	Up	3.965 Second
2023-05-19 04:20:32	Up	0.354 Second
2023-05-19 02:10:24	Up	0.299 Second
2023-05-19 00:00:30	Up	0.367 Second
2023-05-18 21:50:25	Up	0.403 Second

Search Metrics

khan academy
area of a circle
area of a triangle
quadratic formula
less than sign

☁ Page Metrics

and 3%
our 2%
teachers 2%
khan 2%
academy 2%
the 2%
learners 1%
here 1%
math 1%
start 1%
courses 1%
every 1%
their 1%
free 1%
education 1%
your 1%
can 1%
for 1%
you 1%
skills 1%
%

Website raw article content tells search engines what your web page content is about. The word usage rate is very important and the frequency of words used above 4% is perceived as spam.

☯ Technology Analysis

- Cookie - Express.js - Node.js - HSTS - Google Cloud - varnish - Fastly - Amazon CloudFront - Amazon Web Services (AWS)

✇ DNS Records

Record	Class	TTL	Value
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A	IN	59	ip: 52.84.112.28
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A	IN	59	ip: 52.84.112.83
NS	IN	21599	target: ns-125.awsdns-15.com
NS	IN	21599	target: ns-1489.awsdns-58.org
NS	IN	21599	target: ns-1664.awsdns-16.co.uk
NS	IN	21599	target: ns-798.awsdns-35.net
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TXT	IN	299	txt: facebook-domain-verification=8kvuco8ljlv8t1aedswjypctrp1pk3 entries: facebook-domain-verification=8kvuco8ljlv8t1aedswjypctrp1pk3
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TXT	IN	299	txt: google-site-verification=SprWzGYoIdXdFrUCSyBhXJtHzFjE8FAQNlTamgKenhU entries: google-site-verification=SprWzGYoIdXdFrUCSyBhXJtHzFjE8FAQNlTamgKenhU
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TXT	IN	299	txt: google-site-verification=y1w1HGdtmQcg92Uy4JtubYkFtDDshCwmDXTFCgjpr-Y entries: google-site-verification=y1w1HGdtmQcg92Uy4JtubYkFtDDshCwmDXTFCgjpr-Y
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TXT	IN	299	txt: v=spf1 include:_spf.google.com include:sendgrid.net include:aspmx.sailthru.com include:mailgun.org include:_netblocks.khanacademy.org -all entries: v=spf1 include:_spf.google.com include:sendgrid.net include:aspmx.sailthru.com include:mailgun.org include:_netblocks.khanacademy.org -all
MX	IN	299	pri: 1 target: aspmx.l.google.com
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MX	IN	299	pri: 5 target: alt1.aspmx.l.google.com
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SOA	IN	299	mname: ns-1664.awsdns-16.co.uk rname: awsdns-hostmaster.amazon.com serial: 1 refresh: 7200 retry: 900 expire: 1209600 minimum-ttl: 86400

ℹ Domain WHOIS

Domain name: Khanacademy.org
Registry domain id: D118495620-lror
Registrar whois server: Whois.godaddy.com
Registrar url: Http://www.whois.godaddy.com
Updated date: 2019-03-15t14:46:57z
Creation date: 2006-03-14t22:24:02z
Registry expiry date: 2024-03-14t22:24:02z
Registrar: Godaddy.com, llc
Registrar iana id: 146
Registrar abuse contact email: Abuse@godaddy.com
Registrar abuse contact phone: +1.4806242505
Domain status: The owner can't delete this domain
Domain status: The owner can't renew this domain
Domain status: The owner can't transfer to another company this domain
Domain status: The owner can't update this domain
Registrant organization: Khan academy
Registrant state/province: California
Registrant country: Us
Name server: Ns-1489.awsdns-58.org
Name server: Ns-125.awsdns-15.com
Name server: Ns-1664.awsdns-16.co.uk
Name server: Ns-798.awsdns-35.net
Dnssec: Unsigned
Last update of whois database: 2021-01-31t19:23:30z

✉ Server IP Details

Amazon technologies inc. at-88-z (net-52-84-0-0-1) 52.84.0.0 - 52.95.255.255
Amazon.com, inc. amazo-cf (net-52-84-0-0-2) 52.84.0.0 - 52.85.255.255

☰ HTTP Headers

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x-powered-by	express
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cache-control	no-store, must-revalidate
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✔ Robots.txt

User-agent: *
Sitemap: https://www.khanacademy.org/sitemap.xml
Disallow: /_ah/
Disallow: /admin/
Disallow: /api/auth/
Disallow: /api/internal/_bb/
Disallow: /api/internal/_mt/
Disallow: /bigbingo_redirect
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Disallow: /devadmin/
Disallow: /embed_video
Disallow: /postlogin
Disallow: /preview/
Disallow: /search
Disallow: /searchtest
Disallow: /settings/linkaccount

⚔ SSL Details

Subject	C = BE, O = GlobalSign nv-sa, CN = GlobalSign CloudSSL CA - SHA256 - G3
Issuer	C = BE, O = GlobalSign nv-sa, OU = Root CA, CN = GlobalSign Root CA
Version	2
Serial Number	46f08cdbcf2c5466ef3301dd5f34
Signature Algorithm	sha256WithRSAEncryption
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X509v3 Key Usage	CertificateSign,CRLSign
X509v3 Extended Key Usage	TLSWebServerAuthentication,TLSWebClientAuthentication
X509v3 Basic Constraints	CA:TRUE,pathlen:0
X509v3 Subject Key Identifier	A9:2B:87:E1:CE:24:47:3B:1B:BF:CF:85:37:02:55:9D:0D:94:58:E6
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Authority Information Access	OCSP-URI:http://ocsp.globalsign.com/rootr1
X509v3 CRL Distribution Points	, FullName:, URI:http://crl.globalsign.com/root.crl
X509v3 Certificate Policies	Policy:1.3.6.1.4.1.4146.1.20, Policy:2.23.140.1.2.2, CPS:https://www.globalsign.com/repository/
Start date	Aug 19 00:00:00 2015 GMT
Expire date	Aug 19 00:00:00 2025 GMT
RSA Public Key	2048