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Title:
Smarthistory: Art History on Khan Academy (article) | Khan Academy
Метаключевые слова:
khan academy, learn, videos, lectures, practice, exercises, skills
Мета-описание:
Read and learn for free about the following article: Smarthistory: Art History on Khan Academy
H1 Tag:
Smarthistory: Art History on Khan Academy

Технология сайта

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Unknown
Безопасный SSL:
Unavailable
robots.txt:
Unavailable
XML Карта сайта:
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Gzip-сжатие:
Available
favicon.ico:
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Анализ заголовка HTTP

Поля заголовка HTTP являются компонентами заголовка сообщения запросов и ответов в протоколе передачи гипертекста (HTTP). Они определяют рабочие параметры транзакции HTTP. Поля заголовка не отображаются напрямую обычными веб-браузерами, такими как Internet Explorer, Google Chrome, Firefox и т. д. Ниже приведена информация заголовка HTTP smarthistory.khanacademy.org:
HTTP/1.1 301 Moved Permanently
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Cache-Control: no-cache, must-revalidate
Set-Cookie: fkey=1.0_3ylJYVpjxduJcQ==_1566715061; Path=/
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X-Content-Type-Options: nosniff
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X-Cloud-Trace-Context: ce5712f90997c7679b23d57d45044882
Pragma: no-cache
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Server: Google Frontend
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X-Cache: MISS, MISS
X-Cache-Hits: 0, 0
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HTTP/1.1 301 Moved Permanently
Content-Type: text/html; charset=utf-8
Cache-Control: no-cache, must-revalidate
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X-Content-Type-Options: nosniff
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X-Cloud-Trace-Context: 59e6c79f48797f37376e5f089b37b300;o=3
Pragma: no-cache
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Server: Google Frontend
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HTTP/1.1 200 OK
Content-Type: text/html; charset=utf-8
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Content-Encoding: gzip
X-Cloud-Trace-Context: 8ef8bfe9edf1c6efe07dbd2f163d9af0
Server: Google Frontend
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X-Cache: MISS, MISS
X-Cache-Hits: 0, 0
X-Timer: S1566715061.352147,VS0,VE208
Vary: Accept-Encoding

Анализ записей DNS

Системы доменных имен (DNS) преобразуют легко запоминаемые доменные имена в числовые IP-адреса, необходимые для определения местоположения компьютерных служб и устройств по всему миру. Всего имеется 29 записей DNS для khanacademy.org.
Host Type IP/Цель TTL Дополнительная информация
khanacademy.orgA60
khanacademy.orgA60
khanacademy.orgA60
khanacademy.orgA60
khanacademy.orgNS172800
khanacademy.orgNS172800
khanacademy.orgNS172800
khanacademy.orgNS172800
khanacademy.orgSOA300expire: 1209600
serial: 1
khanacademy.orgMX300pri: 1
khanacademy.orgMX300pri: 10
khanacademy.orgMX300pri: 10
khanacademy.orgMX300pri: 5
khanacademy.orgMX300pri: 5
khanacademy.orgTXT
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khanacademy.orgTXT
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khanacademy.orgTXT
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khanacademy.orgTXT
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khanacademy.orgTXT
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khanacademy.orgTXT
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khanacademy.orgTXT
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khanacademy.orgTXT
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khanacademy.orgTXT
v=spf1 include:_spf.google.com include:sendgrid.net include:aspmx.sailthru.com exists:%{i}._spf.mta.salesforce.com include:mail.zendesk.com include:mg-spf.greenhouse.io -all
300