javascript.info
The Modern JavaScript Tutorial

!Нет тега H1

Modern JavaScript Tutorial: simple, but detailed explanations with examples and tasks, including: closures, document and events, object oriented programming and more.

Ключевые слова не указаны

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://javascript.info/

Время ответа сервера 0,8 сек

Время загрузки HTML страницы 0,436 сек

iРазмер HTML кода: 50275

Ссылка на favicon присутствует

iКоличество IMGs: 2

Атрибут ALT установлен для всех IMGs

Адаптирован для мобильных устройств. Есть тег VIEWPORT

W3C валидация. Количество ошибок HTML и CSS: 4

W3C валидация. Количество предупреждений: 1

Использует robots.txt

!Не использует sitemap

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

Географическое положение сайта Javascript.info

iUS San Francisco 101 Townsend Street

101, Townsend Street, South Beach, San Francisco, San Francisco City and County, San Francisco, California, 94017, United States

Техническая информация

iСервер: cloudflare

iJavascript.info создан 23 year(s) 5 month(s) 10 day(s) ago (2001-09-21)

iОкончание срока регистрации (2022-09-21)

iJavascript.info зарегистрирован у регистратора CLOUDFLARE, INC.

iJavascript.info зарегистрирован на DATA REDACTED

iNS сервера: INES.NS.CLOUDFLARE.COM, DAMON.NS.CLOUDFLARE.COM

iIP версии 4: 104.26.12.17, 104.26.13.17, 172.67.74.41

iIP версии 6: 2606:4700:20::ac43:4a29, 2606:4700:20::681a:d11, 2606:4700:20::681a:c11

iDNS TXT запись: "google-site-verification=OPB5BvCtqM2C2mOORtOj07XW_sgzSq2aW7r63B5s6yY"
"yandex-verification: 9ecaa357f86ab13e"
"v=spf1 include:amazonses.com include:_spf.google.com include:mail.zendesk.com ~all"

iDNS MX почтовая запись: 10 aspmx5.googlemail.com., 1 aspmx.l.google.com., 5 alt1.aspmx.l.google.com., 5 alt2.aspmx.l.google.com., 10 aspmx2.googlemail.com., 10 aspmx3.googlemail.com., 10 aspmx4.googlemail.com.

iDMARC почтовая антиспам запись: 104.26.13.17, 104.26.12.17, 172.67.74.41

iADSP почтовая запись: 104.26.13.17, 104.26.12.17, 172.67.74.41

iПолная информация из Whois

[Querying whois.afilias.net]
[whois.afilias.net]
Domain Name: JAVASCRIPT.INFO
Registry Domain ID: D745950-LRMS
Registrar WHOIS Server:
Registrar URL:
Updated Date: 2019-05-11T20:45:40Z
Creation Date: 2001-09-21T03:49:14Z
Registry Expiry Date: 2022-09-21T03:49:14Z
Registrar Registration Expiration Date:
Registrar: CloudFlare, Inc.
Registrar IANA ID: 1910
Registrar Abuse Contact Email:
Registrar Abuse Contact Phone:
Reseller:
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registrant Organization: DATA REDACTED
Registrant State/Province: DATA REDACTED
Registrant Country: US
Name Server: INES.NS.CLOUDFLARE.COM
Name Server: DAMON.NS.CLOUDFLARE.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2021-08-05T13:52:37Z <<<

For more information on Whois status codes, please visit https://icann.org/epp

Access to AFILIAS WHOIS information is provided to assist persons in determining the contents of a domain name registration record in the Afilias registry database. The data in this record is provided by Afilias Limited for informational purposes only, and Afilias does not guarantee its accuracy.  This service is intended only for query-based access. You agree that you will use this data only for lawful purposes and that, under no circumstances will you use this data to(a) allow, enable, or otherwise support the transmission by e-mail, telephone, or facsimile of mass unsolicited, commercial advertising or solicitations to entities other than the data recipient's own existing customers; or (b) enable high volume, automated, electronic processes that send queries or data to the systems of Registry Operator, a Registrar, or Afilias except as reasonably necessary to register domain names or modify existing registrations. All rights reserved. Afilias reserves the right to modify these terms at any time. By submitting this query, you agree to abide by this policy.

The Registrar of Record identified in this output may have an RDDS service that can be queried for additional information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.

iПолная информация об IP 104.26.12.17

[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 1997-2021, American Registry for Internet Numbers, Ltd.
#


NetRange:       104.16.0.0 - 104.31.255.255
CIDR:           104.16.0.0/12
NetName:        CLOUDFLARENET
NetHandle:      NET-104-16-0-0-1
Parent:         NET104 (NET-104-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       AS13335
Organization:   Cloudflare, Inc. (CLOUD14)
RegDate:        2014-03-28
Updated:        2021-05-26
Comment:        All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse
Ref:            https://rdap.arin.net/registry/ip/104.16.0.0



OrgName:        Cloudflare, Inc.
OrgId:          CLOUD14
Address:        101 Townsend Street
City:           San Francisco
StateProv:      CA
PostalCode:     94107
Country:        US
RegDate:        2010-07-09
Updated:        2021-07-01
Ref:            https://rdap.arin.net/registry/entity/CLOUD14


OrgAbuseHandle: ABUSE2916-ARIN
OrgAbuseName:   Abuse
OrgAbusePhone:  +1-650-319-8930
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE2916-ARIN

OrgNOCHandle: CLOUD146-ARIN
OrgNOCName:   Cloudflare-NOC
OrgNOCPhone:  +1-650-319-8930
OrgNOCEmail:  [email protected]
OrgNOCRef:    https://rdap.arin.net/registry/entity/CLOUD146-ARIN

OrgRoutingHandle: CLOUD146-ARIN
OrgRoutingName:   Cloudflare-NOC
OrgRoutingPhone:  +1-650-319-8930
OrgRoutingEmail:  [email protected]
OrgRoutingRef:    https://rdap.arin.net/registry/entity/CLOUD146-ARIN

OrgTechHandle: ADMIN2521-ARIN
OrgTechName:   Admin
OrgTechPhone:  +1-650-319-8930
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/ADMIN2521-ARIN

RNOCHandle: NOC11962-ARIN
RNOCName:   NOC
RNOCPhone:  +1-650-319-8930
RNOCEmail:  [email protected]
RNOCRef:    https://rdap.arin.net/registry/entity/NOC11962-ARIN

RTechHandle: ADMIN2521-ARIN
RTechName:   Admin
RTechPhone:  +1-650-319-8930
RTechEmail:  [email protected]
RTechRef:    https://rdap.arin.net/registry/entity/ADMIN2521-ARIN

RAbuseHandle: ABUSE2916-ARIN
RAbuseName:   Abuse
RAbusePhone:  +1-650-319-8930
RAbuseEmail:  [email protected]
RAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE2916-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 1997-2021, American Registry for Internet Numbers, Ltd.
#

iПолная информация о DNS

A: 104.26.12.17
A: 104.26.13.17
A: 172.67.74.41

AAAA: 2606:4700:20::ac43:4a29
AAAA: 2606:4700:20::681a:d11
AAAA: 2606:4700:20::681a:c11

TXT: "google-site-verification=OPB5BvCtqM2C2mOORtOj07XW_sgzSq2aW7r63B5s6yY"
TXT: "yandex-verification: 9ecaa357f86ab13e"
TXT: "v=spf1 include:amazonses.com include:_spf.google.com include:mail.zendesk.com ~all"

MX: 10 aspmx5.googlemail.com.
MX: 1 aspmx.l.google.com.
MX: 5 alt1.aspmx.l.google.com.
MX: 5 alt2.aspmx.l.google.com.
MX: 10 aspmx2.googlemail.com.
MX: 10 aspmx3.googlemail.com.
MX: 10 aspmx4.googlemail.com.

DMARC: 104.26.13.17
DMARC: 104.26.12.17
DMARC: 172.67.74.41

ADSP: 104.26.13.17
ADSP: 104.26.12.17
ADSP: 172.67.74.41