w3schools.com
W3Schools Online Web Tutorials

 Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.

 HTML, Python, CSS, SQL, JavaScript, How to, PHP, Java, C++, jQuery, Bootstrap, C#, Colors, W3.CSS, XML, MySQL, Icons, Node.js, React, Graphics, Angular, R, AI, Git, Data Science, Code Game, Tutorials, Programming, Web Development, Training, Learning, Quiz, Exercises, Courses, Lessons, References, Examples, Learn to code, Source code, Demos, Tips, Website

Технический рейтинг

 Отсутвует защита от XSS атак. HTTP заголовок "X-XSS-Protection" не найден

 Нет защиты от некоторых видов атак. HTTP заголовок "X-Frame-Options" не найден

 HTTP отвечает кодом - 200

 HTTPS отвечает кодом - 200

 Есть перенаправление с HTTP на HTTPS

iHTTP перенаправляет на: https://www.w3schools.com:443/

iHTTPS перенаправляет на: https://www.w3schools.com:443/

 Время ответа сервера 0,426 сек

 Время загрузки HTML страницы 0,449 сек

iРазмер HTML кода: 105384

 Ссылка на favicon присутствует

iКоличество IMGs: 6

!Атрибут ALT не установлен для всех IMGs

 Адаптирован для мобильных устройств. Есть тег VIEWPORT

 W3C валидация. Количество ошибок HTML и CSS: 6

 W3C валидация. Количество предупреждений: 3

 Использует robots.txt

!Не использует sitemap

 Есть и DNS MX запись, и антиспам записи DMARC и ADSP

Географическое положение сайта W3schools.com

iUS Seattle Amazon Web Services, Inc.

Техническая информация

iСервер: ECS (ska/F71E)

iW3schools.com создан 24 year(s) 7 month(s) 4 day(s) ago (2000-03-21)

iОкончание срока регистрации 5 month(s) 6 day(s) (2025-03-21)

iW3schools.com зарегистрирован у регистратора NETWORK SOLUTIONS, LLC

iW3schools.com зарегистрирован на PERFECT PRIVACY, LLC

iКонтактная информация: [email protected]

iNS сервера: NS-769.AWSDNS-32.NET,   NS-314.AWSDNS-39.COM,   NS-1939.AWSDNS-50.CO.UK,   NS-1409.AWSDNS-48.ORG

iIP версии 4: 76.223.115.82,   13.248.240.135

iDNS TXT запись: "MS=338A1134735F428FF6729DDF746385742F152781"
"amazonses:9O9JMU+QwMbQv3k+hYpAmauno4fuJMUcWephofXN0yc="
"v=spf1 include:_spf.google.com include:amazonses.com include:shops.shopify.com include:mail.zendesk.com ip4:148.122.215.227 -all"

iDNS MX почтовая запись: 1 aspmx.l.google.com.,   10 alt3.aspmx.l.google.com.,   10 alt4.aspmx.l.google.com.,   10 feedback-smtp.eu-west-1.amazonses.com.,   5 alt1.aspmx.l.google.com.,   5 alt2.aspmx.l.google.com.

iDMARC почтовая антиспам запись: 76.223.115.82,   13.248.240.135

iADSP почтовая запись: 13.248.240.135,   76.223.115.82

iПолная информация из Whois

[Querying whois.verisign-grs.com]
[Redirected to whois.networksolutions.com]
[Querying whois.networksolutions.com]
[whois.networksolutions.com]
Domain Name: W3SCHOOLS.COM
Registry Domain ID: 22974369_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.networksolutions.com
Registrar URL: http://networksolutions.com
Updated Date: 2020-11-09T13:05:43Z
Creation Date: 2000-03-21T13:54:41Z
Registrar Registration Expiration Date: 2025-03-21T12:54:41Z
Registrar: Network Solutions, LLC
Registrar IANA ID: 2
Reseller:
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID:
Registrant Name: PERFECT PRIVACY, LLC
Registrant Organization:
Registrant Street: 5335 Gate Parkway care of Network Solutions PO Box 459
Registrant City: Jacksonville
Registrant State/Province: FL
Registrant Postal Code: 32256
Registrant Country: US
Registrant Phone: +1.5707088622
Registrant Phone Ext:
Registrant Fax:
Registrant Fax Ext:
Registrant Email: [email protected]
Registry Admin ID:
Admin Name: PERFECT PRIVACY, LLC
Admin Organization:
Admin Street: 5335 Gate Parkway care of Network Solutions PO Box 459
Admin City: Jacksonville
Admin State/Province: FL
Admin Postal Code: 32256
Admin Country: US
Admin Phone: +1.5707088622
Admin Phone Ext:
Admin Fax:
Admin Fax Ext:
Admin Email: [email protected]
Registry Tech ID:
Tech Name: PERFECT PRIVACY, LLC
Tech Organization:
Tech Street: 5335 Gate Parkway care of Network Solutions PO Box 459
Tech City: Jacksonville
Tech State/Province: FL
Tech Postal Code: 32256
Tech Country: US
Tech Phone: +1.5707088622
Tech Phone Ext:
Tech Fax:
Tech Fax Ext:
Tech Email: [email protected]
Name Server: NS-769.AWSDNS-32.NET
Name Server: NS-314.AWSDNS-39.COM
Name Server: NS-1939.AWSDNS-50.CO.UK
Name Server: NS-1409.AWSDNS-48.ORG
DNSSEC: unsigned
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +1.8777228662
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/
>>> Last update of WHOIS database: 2022-02-27T04:43:32Z <<<

For more information on Whois status codes, please visit https://www.icann.org/resources/pages/epp-status-codes-2014-06-16-en


This listing is a Network Solutions Private Registration. Mail
correspondence to this address must be sent via USPS Express Mail(TM) or
USPS Certified Mail(R); all other mail will not be processed. Be sure to
include the registrant's domain name in the address.

The data in Networksolutions.com's WHOIS database is provided to you by
Networksolutions.com for information purposes only, that is, to assist you in
obtaining information about or related to a domain name registration
record. Networksolutions.com makes this information available "as is," and
does not guarantee its accuracy. By submitting a WHOIS query, you
agree that you will use this data only for lawful purposes and that,
under no circumstances will you use this data to: (1) allow, enable,
or otherwise support the transmission of mass unsolicited, commercial
advertising or solicitations via direct mail, electronic mail, or by
telephone; or (2) enable high volume, automated, electronic processes
that apply to Networksolutions.com  (or its systems). The compilation,
repackaging, dissemination or other use of this data is expressly
prohibited without the prior written consent of Networksolutions.com.
Networksolutions.com reserves the right to modify these terms at any time.
By submitting this query, you agree to abide by these terms.

For more information on Whois status codes, please visit
https://www.icann.org/resources/pages/epp-status-codes-2014-06-16-en.

iПолная информация об IP 76.223.115.82

[Querying whois.arin.net]
[whois.arin.net]

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2022, American Registry for Internet Numbers, Ltd.
#


NetRange:       76.223.0.0 - 76.223.175.255
CIDR:           76.223.160.0/20, 76.223.0.0/17, 76.223.128.0/19
NetName:        AMAZO-4
NetHandle:      NET-76-223-0-0-1
Parent:         NET76 (NET-76-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       AS16509
Organization:   Amazon.com, Inc. (AMAZO-4)
RegDate:        2018-01-10
Updated:        2018-03-07
Ref:            https://rdap.arin.net/registry/ip/76.223.0.0



OrgName:        Amazon.com, Inc.
OrgId:          AMAZO-4
Address:        Amazon Web Services, Inc.
Address:        P.O. Box 81226
City:           Seattle
StateProv:      WA
PostalCode:     98108-1226
Country:        US
RegDate:        2005-09-29
Updated:        2021-09-30
Comment:        For details of this service please see
Comment:        http://ec2.amazonaws.com
Ref:            https://rdap.arin.net/registry/entity/AMAZO-4


OrgAbuseHandle: AEA8-ARIN
OrgAbuseName:   Amazon EC2 Abuse
OrgAbusePhone:  +1-206-266-4064
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/AEA8-ARIN

OrgTechHandle: ANO24-ARIN
OrgTechName:   Amazon EC2 Network Operations
OrgTechPhone:  +1-206-266-4064
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/ANO24-ARIN

OrgRoutingHandle: IPROU3-ARIN
OrgRoutingName:   IP Routing
OrgRoutingPhone:  +1-206-266-4064
OrgRoutingEmail:  [email protected]
OrgRoutingRef:    https://rdap.arin.net/registry/entity/IPROU3-ARIN

OrgNOCHandle: AANO1-ARIN
OrgNOCName:   Amazon AWS Network Operations
OrgNOCPhone:  +1-206-266-4064
OrgNOCEmail:  [email protected]
OrgNOCRef:    https://rdap.arin.net/registry/entity/AANO1-ARIN

OrgRoutingHandle: ARMP-ARIN
OrgRoutingName:   AWS RPKI Management POC
OrgRoutingPhone:  +1-206-266-4064
OrgRoutingEmail:  [email protected]
OrgRoutingRef:    https://rdap.arin.net/registry/entity/ARMP-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2022, American Registry for Internet Numbers, Ltd.
#

iПолная информация о DNS

A: 76.223.115.82
A: 13.248.240.135

TXT: "MS=338A1134735F428FF6729DDF746385742F152781"
TXT: "amazonses:9O9JMU+QwMbQv3k+hYpAmauno4fuJMUcWephofXN0yc="
TXT: "v=spf1 include:_spf.google.com include:amazonses.com include:shops.shopify.com include:mail.zendesk.com ip4:148.122.215.227 -all"

MX: 1 aspmx.l.google.com.
MX: 10 alt3.aspmx.l.google.com.
MX: 10 alt4.aspmx.l.google.com.
MX: 10 feedback-smtp.eu-west-1.amazonses.com.
MX: 5 alt1.aspmx.l.google.com.
MX: 5 alt2.aspmx.l.google.com.

DMARC: 76.223.115.82
DMARC: 13.248.240.135

ADSP: 13.248.240.135
ADSP: 76.223.115.82