Ndl.go.jp 国立国会図書館―National Diet Library

国立国会図書館の公式ウェブサイトです。当館は、国内外の資料・情報を広く収集・保存して、知識・文化の基盤となり、国会の活動を補佐するとともに、行政・司法及び国民に図書館サービスを提供しています。

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Online Status
Online

Server IP address resolved: Yes
Http response code: 200
Response time: 0.92 sec.
Last Checked: 06/10/2024

Over the time ndl.go.jp has been ranked as high as 4,730 in the world, while most of its traffic comes from Japan, where it reached as high as 968 position.

Ndl.go.jp receives about 14,628 unique visitors and 52,661 pageviews per day. The estimated value of ndl.go.jp is 919,800 USD. Each unique visitor makes about 3.6 pageviews on average.

Ndl.go.jp is registered under .JP top-level domain. Check other websites in .JP zone.

At the time of the last check (October 13, 2024) ndl.go.jp has an expired SSL certificate issued by DigiCert Inc (expired on November 10, 2024). Check other websites using SSL certificates issued by DigiCert Inc.

According to Google Safe Browsing, Google Safe Search, Symantec and Web of Trust ndl.go.jp is quite a safe domain.

Mobile-Friendly test indicates that ndl.go.jp is well optimized for mobile and tablet devices, however website page loading time could be improved.


Global Rank
12,738
Average Load Time
1.15sec
Links In Count
6,655
Website Value
$919,800

Audience Geography. Where are ndl.go.jp visitors located?

Country Rank
Japan Japan JP968
Korea Korea KR16119
China China CN16848
Taiwan Taiwan TW18388
United States United States US159609
Country Percent of Pageviews
Japan Japan JP82.6%
China China CN14.7%
Korea Korea KR0.7%
United States United States US0.7%
Taiwan Taiwan TW0.3%
Other1%
Country Percent of Visitors
Japan Japan JP89.6%
China China CN4.9%
Korea Korea KR1.3%
Taiwan Taiwan TW0.8%
United States United States US0.8%
Other2.6%

Where do visitors go on ndl.go.jp?

Subdomain Pageviews
dl.ndl.go.jp		54.69%
iss.ndl.go.jp		18.6%
ndl.go.jp		8.22%
ndlonline.ndl.go.jp		5.3%
kokkai.ndl.go.jp		4.13%
crd.ndl.go.jp		3.87%
rnavi.ndl.go.jp		2.29%
hourei.ndl.go.jp		1.42%
current.ndl.go.jp		0.83%
other		0.64%
Subdomain Pageviews per User
dl.ndl.go.jp		8.1
kokkai.ndl.go.jp		7
hourei.ndl.go.jp		4
ndl.go.jp		2.6
iss.ndl.go.jp		2.4
ndlonline.ndl.go.jp		1.5
rnavi.ndl.go.jp		1.2
crd.ndl.go.jp		1.1
current.ndl.go.jp		1
Subdomain Reach
iss.ndl.go.jp		31.19%
dl.ndl.go.jp		27.63%
crd.ndl.go.jp		14.4%
ndlonline.ndl.go.jp		14%
ndl.go.jp		13.12%
rnavi.ndl.go.jp		7.59%
current.ndl.go.jp		2.64%
kokkai.ndl.go.jp		2.3%
hourei.ndl.go.jp		1.58%

How popular is ndl.go.jp?

Days Reach Rank Reach Rank Delta Reach per Million Reach per Million Delta
901378431460-5.739%
301438659957-5.116%
715683151752-10.79%
111770-172710.9%
Days Pageviews Rank Pageviews Rank Delta Pageviews per Million Pageviews per Million Delta Pageviews per User Pageviews per User Delta
9012592-6705893%3.69%
301179282629-1.17%4.14%
711718-45196440%4.550%
1276351708227-63.946%1-64.175%
Period Global Rank Global Rank Delta
past 3 months12738-35
past month12928479
past week13593-311
yesterday146403806

Alexa Rank shows how popular ndl.go.jp is in comparison with other sites. The most popular site has Alexa Rank equals 1. If ndl.go.jp has Alexa Rank equals 100,000, then it is in TOP 100,000 popular sites in the world. The rank is calculated using a combination of average daily visitors to ndl.go.jp and pageviews on ndl.go.jp over the past 3 months.

Overview
Last Updated: 11/17/2024
Overall result - "ndl.go.jp" is SAFE.
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
Last Updated: 03/21/2024
ndl.go.jp is safe.

Norton ConnectSafe evaluates ndl.go.jp for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search
Last Updated: 10/11/2016
ndl.go.jp is safe.

SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.

Google Safe Browsing
Last Updated: 01/09/2019
Malware not found at "ndl.go.jp".
"ndl.go.jp" is not a phishing page.
"ndl.go.jp" does not install unwanted software.
"ndl.go.jp" does not contain harmfull applications.
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.
Site Advisor
Last Updated: 02/22/2021
ndl.go.jp is safe.

McAfee assesses ndl.go.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 ndl.go.jp for mature or inappropriate content, only security checks are evaluated.

Web of Trust
Last Updated: 01/09/2019
ndl.go.jp child safety isvery good.

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

SSL Information
SSL Checker Tool
Domain www.ndl.go.jp
Issuer OrganizationDigiCert Inc
Issuer DigiCert Global G2 TLS RSA SHA256 2020 CA1
Algorithm RSA-SHA256
Valid form 10/11/2023
Expiration 11/10/2024
SignedCertificate is not self signed
Additional Domains www.ndl.go.jp
ndl.go.jp
Server Location
Geolocation Tool
Tokyo
Tokyo
Japan
ASN Information
ASN Lookup Tool

ASN ID: 2497
ASN Title: IIJ Internet Initiative Japan Inc., JP

Last Update: 07/16/2024

% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS2497 - AS2528'

as-block: AS2497 - AS2528
descr: JPNIC-2Byte-ASBLOCK-AP
descr: for assignment to JPNIC members
country: JP
admin-c: JNIC1-AP
tech-c: JNIC1-AP
remarks: Authoritative information regarding AS Number
remarks: assignments made from within this block can be
remarks: queried at whois.nic.ad.jp.
remarks: To only display English output,
remarks: add '/e' at the end of command,
remarks: e.g. 'whois -h whois.nic.ad.jp xxx/e'.
mnt-by: APNIC-HM
mnt-lower: MAINT-JPNIC
last-modified: 2017-06-12T03:54:29Z
source: APNIC

role: Japan Network Information Center
address: Urbannet-Kanda Bldg 4F
address: 3-6-2 Uchi-Kanda
address: Chiyoda-ku, Tokyo 101-0047,Japan
country: JP
phone: +81-3-5297-2311
fax-no: +81-3-5297-2312
e-mail: hostmaster@nic.ad.jp
admin-c: JI13-AP
tech-c: JE53-AP
nic-hdl: JNIC1-AP
mnt-by: MAINT-JPNIC
last-modified: 2012-08-28T07:58:02Z
source: APNIC

% Information related to 'AS2497'

aut-num: AS2497
as-name: IIJ
descr: Internet Initiative Japan Inc.
import:
export:
country: JP
admin-c: JP00006327
tech-c: JP00006327
last-modified: 2005-06-03T00:47:08Z
source: JPNIC

% This query was served by the APNIC Whois Service version 1.88.15-46 (WHOIS-US3)

WHOIS
WHOIS Lookup Tool

[ JPRS database provides information on network administration. Its use is ]
[ restricted to network administration purposes. For further information, ]
[ use 'whois -h whois.jprs.jp help'. To suppress Japanese output, add'/e' ]
[ at the end of command, e.g. 'whois -h whois.jprs.jp xxx/e'. ]
Domain Information: [ドメイン情報]
a. [ドメイン名] NDL.GO.JP
e. [そしきめい] こくりつこっかいとしょかん
f. [組織名] 国立国会図書館
g. [Organization] National Diet Library
k. [組織種別] 政府機関
l. [Organization Type] Government
m. [登録担当者] KS73324JP
n. [技術連絡担当者] TM78981JP
p. [ネームサーバ] dns-a.iij.ad.jp
p. [ネームサーバ] ns.ndl.go.jp
p. [ネームサーバ] ns2.ndl.go.jp
p. [ネームサーバ] ns3.ndl.go.jp
p. [ネームサーバ] ns4.ndl.go.jp
s. [署名鍵]
[状態] Connected (2025/01/31)
[登録年月日] 1995/01/23
[接続年月日] 1995/04/18
[最終更新] 2024/04/10 11:56:47 (JST)

DNS Records
DNS Lookup Tool
HostA RecordTTL
ndl.go.jp163.49.60.953600
HostMX RecordPriorityTTL
ndl.go.jptn-vmw-mgw0001.ndl.go.jp103600
ndl.go.jptn-vmw-mgw0002.ndl.go.jp303600
HostNS RecordTTL
ndl.go.jpns2.ndl.go.jp3600
ndl.go.jpns4.ndl.go.jp3600
ndl.go.jpns3.ndl.go.jp3600
ndl.go.jpns.ndl.go.jp3600
ndl.go.jpdns-a.iij.ad.jp3600
HostTXT RecordTTL
ndl.go.jpv=spf1 +mx +ip4:114.160.41.17 +ip4:114.160.41.18 +ip4:114.160.41.25 +ip4:114.160.41.26 +ip4:202.32.173.188 +ip4:163.49.60.95 include:spf.dox.jp -all3600

ndl.go.jp
TTL: 3600
Email address: postmaster.ndl.go.jp
Serial: 2019070203
Refresh: 3600
Retry: 300
Expire: 3600000
Minimum: 3600

HTML Validation Tool
Errors
Warnings
Desktop Page Insights Tool

Last tested: 12/06/2019

Desktop
Desktop Speed
18%
Desktop Resource Breakdown
Total Resources55
Number of Hosts5
Static Resources50
JavaScript Resources9
CSS Resources5
Mobile Page Insights Tool

Last tested: 02/04/2018

Mobile
Mobile Usability
63%
Mobile Speed
44%
Mobile Resource Breakdown
Total Resources82
Number of Hosts4
Static Resources77
JavaScript Resources11
CSS Resources7
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