Yamakawa.co.jp 歴史と教科書の山川出版社

定評ある山川の歴史書。「歴史書、教科書、学習参考書の山川」として高等学校の日本史・世界史・公民の教科書、学習参考書を始めとし、さまざまな歴史刊行物を出版しています。

Yamakawa.co.jp Quick Summary

Status

Online

Server IP address resolved: Yes

Http response code: 200

Response time: 1.77 sec.

Last Checked: 04/29/2024

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Yamakawa.co.jp traffic estimate is about 114 unique visitors and 570 pageviews per day. The approximated value of yamakawa.co.jp is 5,840 USD. Every unique visitor makes about 5 pageviews on average.

Alexa Traffic Rank estimates that yamakawa.co.jp is ranked number 21,996 in the world.

Yamakawa.co.jp is registered under .JP top-level domain. Check other websites in .JP zone.

During the last check (September 07, 2023) yamakawa.co.jp has an expired SSL certificate issued by SecureCore (expired on February 13, 2024), please click the “Refresh” button for SSL Information at the Safety Information section. Check other websites using SSL certificates issued by SecureCore.

In accordance with Google Safe Browsing, Google Safe Search, Symantec and Web of Trust yamakawa.co.jp is pretty a safe domain.

Relying on Google Mobile-Friendly test yamakawa.co.jp is well optimized for mobile and tablet devices, however website page loading time may be improved.

Yamakawa.co.jp General Information

Yamakawa.co.jp Audience Geography

Where are website visitors coming from?

Visitors
Pageviews
Ranks

Country	Visitors

Yamakawa.co.jp Traffic Distribution

Where do visitors go on yamakawa.co.jp?

Subdomain Traffic
Views per User
Subdomain Reach

Subdomain	Pageviews

Yamakawa.co.jp Popularity

How popular is yamakawa.co.jp?

Global Rank
Pageviews
Reach

Period	Global Rank	Global Rank Delta
past 3 months	1122135	504340

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	801261	130473	4	-16.92%	5	100%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	1379588	747339	3	-61.092%

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Yamakawa.co.jp Safety Information

Rankchart Summary

Safe

Updated: 04/29/2024

We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.

Norton Connect Safe

Safe

Updated: 03/20/2024

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Norton ConnectSafe evaluates websites for any unsafe and inapropriate content. The results are important for families with young children.

Google Safe Search

Safe

Updated: 03/09/2019

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SafeSearch works as a parental control tool to filter out any content that might be inappropriate for your children.

Google Safe Browsing

Safe

Malware not found

Phishing not detected

Unwanted software not found

Harmfull applications not found

Updated: 01/09/2019

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Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.

McAfee® WebAdvisor

Safe

Updated: 02/19/2021

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McAfee assesses yamakawa.co.jp for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze yamakawa.co.jp for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Child safety is very good

Updated: 01/12/2019

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The WOT calculates reputation of the yamakawa.co.jp. This reputation system receives ratings from users and information from third-party sources, assesses the yamakawa.co.jp for safety features and confirms, whether yamakawa.co.jp is suitable for children.

Yamakawa.co.jp SSL Information

Information about SSL/TLS certificates

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Domain	www.yamakawa.co.jp
Issuer Organization	SecureCore
Issuer	SecureCore RSA DV CA
Algorithm	RSA-SHA256
Valid form	01/13/2023
Expiration	02/13/2024
Signed	Certificate is not self signed
Additional Domains	www.yamakawa.co.jp yamakawa.co.jp

SSL Checker

Yamakawa.co.jp Server Information

Yamakawa.co.jp Server Location

Where website hosting server is located?

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Yamakawa.co.jp ASN Information

Information about IP address owner

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ASN ID: 131965

ASN Title: XSERVER Xserver Inc., JP

Updated: 10/15/2023

Raw ASN data:

Geolocation

ASN Lookup

Yamakawa.co.jp Domain Name Information

Yamakawa.co.jp DNS Information

Domain name service records

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A

Host	A Record	TTL

Yamakawa.co.jp Whois Information

Information about registered users or assignees of an Internet resource

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Raw WHOIS data:

Whois

DNS Lookup

Yamakawa.co.jp HTML Validation

Yamakawa.co.jp W3C HTML Markup Validation

HTML markup errors and warnings

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Errors:

Saw “<?”. Probable cause: Attempt to use an XML processing instruction in HTML. (XML processing instructions are not supported in HTML.)

A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.

A slash was not immediately followed by “>”.

No space between attributes.

Attribute “));” not allowed on element “input” at this point.

Attribute “?” not allowed on element “input” at this point.

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Stray end tag “i”.

End tag “a” violates nesting rules.

Element “div” not allowed as child of element “strong” in this context. (Suppressing further errors from this subtree.)

End tag “div” seen, but there were open elements.

Unclosed element “strong”.

End tag “section” seen, but there were open elements.

Element “section” not allowed as child of element “strong” in this context. (Suppressing further errors from this subtree.)

Element “aside” not allowed as child of element “strong” in this context. (Suppressing further errors from this subtree.)

Duplicate ID “student”.

Element “footer” not allowed as child of element “strong” in this context. (Suppressing further errors from this subtree.)

End tag for “body” seen, but there were unclosed elements.

Warnings:

Attribute “));” is not serializable as XML 1.0.

Attribute “?” is not serializable as XML 1.0.

Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.

The first occurrence of ID “student” was here.

HTML Validator

Yamakawa.co.jp Desktop Performance

How Well Yamakawa.co.jp Performs On Desktops?

Website desktop performance and usability tips

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Speed
Resource Breakdown

Speed

56%

Leverage browser caching

Optimize images

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Enable compression

Minify CSS

Minify JavaScript

Minify HTML

Updated: 10/14/2015

Yamakawa.co.jp Mobile Performance

How Optimized Is Yamakawa.co.jp for Mobile Devices?

Tips on speeding up mobile site performance

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Usability
Speed
Resource Breakdown

Usability

99%

Size tap targets appropriately

Updated: 08/13/2019

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Total Resources	91
Number of Hosts	4
Static Resources	83
JavaScript Resources	8
CSS Resources	2

CSS	34.2 KBytes
Images	1.0 MBytes
HTML	23.4 KBytes
JavaScript	172.7 KBytes
Other	10.8 KBytes

Total Resources	85
Number of Hosts	5
Static Resources	79
JavaScript Resources	9
CSS Resources	5

CSS	159.5 KBytes
Images	4.7 MBytes
HTML	45.1 KBytes
JavaScript	410.1 KBytes
Other	1.7 KBytes