Dwhd.org Linux–不是那么难 | 学习Linux–那么难是不？

Legion是一个个人的linux学习记录型博客，本人不望博客多出名，只期待自己能把自己在linux路上的点点滴滴都做个记录

Dwhd.org Overview

Dwhd.org ranking shows that the page is at position 1,387,157 over the world.

In terms of rank-to-traffic ratio, dwhd.org has 533 unique users per day, viewing 538 pages. The rank based value of dwhd.org is 6,314 USD. Every user makes 1.07 pageviews on average.

Dwhd.org boasts a link base consisting of 530 referring domains and 589 external backlinks, as revealed by the data obtained from web network scanning.

Dwhd.org top-level domain belongs to .ORG domain zone. Check other webpages in .ORG zone.

According the last verification test in July 12, 2024, dwhd.org has an expired SSL certificate issued by Let's Encrypt (expired on September 16, 2024). Click button “Update” SSL Information at the Safety Information section. Check the list of websites using SSL by Let's Encrypt.

Based on data from Google Safe Browsing, Google Safe Search and Symantec dwhd.org is a fairly safe domain.

According the Mobile-Friendly test by Google dwhd.org is nice optimized for mobile devices and tablets, however the webpage speed could be improved.

Dwhd.org Rank Summary

Global Rank

1,387,157

Average Load Time

3.83sec

Links In Count

186

Website Value

$5,846

Audience Geography. Where are dwhd.org visitors located?

Country	Visitors

Country	Pageviews

Country	Rank

Where do visitors go on dwhd.org?

Subdomain	Pageviews

Subdomain	Pageviews per User

Subdomain	Reach

How popular is dwhd.org?

Period	Global Rank	Global Rank Delta
past 3 months	1387157	891702

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	1999644	1179627	1	-75.217%	1	0%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	1144409	757442	3	-75.217%

Dwhd.org Website Safety

Overview

Last Updated: 04/03/2025

Overall result - dwhd.org 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: 03/27/2025

dwhd.org is safe.

Norton ConnectSafe evaluates dwhd.org for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 04/06/2019

dwhd.org 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

dwhd.org is safe.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.

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: 02/26/2021

dwhd.org is safe.

McAfee assesses dwhd.org 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 dwhd.org for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 04/03/2025

dwhd.org child safety is unknown.

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

SSL Information

SSL Checker Tool

Domain	dwhd.org
Issuer Organization	Let's Encrypt
Issuer	R11
Algorithm	RSA-SHA256
Valid form	06/18/2024
Expiration	09/16/2024
Signed	Certificate is not self signed
Additional Domains	*.dwhd.org dwhd.org

Dwhd.org Rank History

Alexa Rank shows how popular dwhd.org is in comparison with other sites. The most popular site has Alexa Rank equals 1. If dwhd.org 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 dwhd.org and pageviews on dwhd.org over the past 3 months.

Dwhd.org Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 133752

ASN Title: Leaseweb Asia Pacific pte. ltd.

Last Update: 11/08/2024

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

% Information related to 'AS133632 - AS134556'

as-block: AS133632 - AS134556
descr: APNIC ASN block
remarks: These AS numbers are further assigned by APNIC
remarks: to APNIC members and end-users in the APNIC region
admin-c: HM20-AP
tech-c: HM20-AP
mnt-by: APNIC-HM
mnt-lower: APNIC-HM
last-modified: 2014-09-03T01:31:49Z
source: APNIC

role: APNIC Hostmaster
address: 6 Cordelia Street
address: South Brisbane
address: QLD 4101
country: AU
phone: +61 7 3858 3100
fax-no: +61 7 3858 3199
e-mail: helpdesk@apnic.net
admin-c: AMS11-AP
tech-c: AH256-AP
nic-hdl: HM20-AP
remarks: Administrator for APNIC
notify: hostmaster@apnic.net
mnt-by: MAINT-APNIC-AP
last-modified: 2013-10-23T04:06:51Z
source: APNIC

% Information related to 'AS133752'

% Abuse contact for 'AS133752' is 'abuse@sg.leaseweb.com'

aut-num: AS133752
as-name: LEASEWEB-APAC-HKG-10
descr: Leaseweb Asia Pacific pte. ltd.
country: HK
org: ORG-LAPP1-AP
admin-c: LAPP1-AP
tech-c: LAPP1-AP
mnt-by: MAINT-LSW-SG
mnt-routes: MAINT-LSW-SG
mnt-irt: IRT-LSW-SG
last-modified: 2017-11-06T13:47:11Z
source: APNIC

irt: IRT-LSW-SG
address: 18B Keong Saik Road, Singapore 089125
e-mail: apnic@sg.leaseweb.com
abuse-mailbox: abuse@sg.leaseweb.com
admin-c: LAPP1-AP
tech-c: LAPP1-AP
auth: # Filtered
mnt-by: MAINT-LSW-SG
last-modified: 2016-06-06T08:51:20Z
source: APNIC

organisation: ORG-LAPP1-AP
org-name: Leaseweb Asia Pacific pte. ltd.
country: SG
address: 18B Keong Saik Road
address: Singapore, 089125
phone: +65-3158-7350
e-mail: apnic@leaseweb.com
mnt-ref: APNIC-HM
mnt-by: APNIC-HM
last-modified: 2017-08-29T23:21:17Z
source: APNIC

role: Leaseweb Asia Pacific pte ltd administrator
address: 18B Keong Saik Road, Singapore 089125
country: SG
phone: +65 3158 7350
e-mail: apnic@sg.leaseweb.com
admin-c: LAPP1-AP
tech-c: LAPP1-AP
nic-hdl: LAPP1-AP
mnt-by: MAINT-LSW-SG
notify: noc@network.leaseweb.com
last-modified: 2016-06-06T09:03:53Z
source: APNIC

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

Dwhd.org Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: dwhd.org
Registry Domain ID: 602a156bf6ef4e74a96d94c42fa7a04c-LROR
Registrar WHOIS Server: http://whois.ovh.com
Registrar URL: http://www.ovh.com
Updated Date: 2022-04-29T00:21:26Z
Creation Date: 2012-03-10T22:12:12Z
Registry Expiry Date: 2031-03-10T22:12:12Z
Registrar: OVH sas
Registrar IANA ID: 433
Registrar Abuse Contact Email: abuse@ovh.net
Registrar Abuse Contact Phone: +33.972101007
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization:
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province:
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: CN
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
Admin Country: REDACTED FOR PRIVACY
Admin Phone: REDACTED FOR PRIVACY
Admin Phone Ext: REDACTED FOR PRIVACY
Admin Fax: REDACTED FOR PRIVACY
Admin Fax Ext: REDACTED FOR PRIVACY
Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
Tech Street: REDACTED FOR PRIVACY
Tech City: REDACTED FOR PRIVACY
Tech State/Province: REDACTED FOR PRIVACY
Tech Postal Code: REDACTED FOR PRIVACY
Tech Country: REDACTED FOR PRIVACY
Tech Phone: REDACTED FOR PRIVACY
Tech Phone Ext: REDACTED FOR PRIVACY
Tech Fax: REDACTED FOR PRIVACY
Tech Fax Ext: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Name Server: ara.ns.cloudflare.com
Name Server: toby.ns.cloudflare.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-12-04T03:11:32Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL

Host	MX Record	Priority	TTL

Host	NS Record	TTL

Host	TXT Record	TTL

Dwhd.org HTML Check

HTML Validation Tool

Warnings

Consider avoiding viewport values that prevent users from resizing documents.

The “type” attribute is unnecessary for JavaScript resources.

The “type” attribute for the “style” element is not needed and should be omitted.

The “main” role is unnecessary for element “main”.

The “navigation” role is unnecessary for element “nav”.

The “contentinfo” role is unnecessary for element “footer”.

The first occurrence of ID “user_login” was here.

Errors

Bad value “Cache-Control” for attribute “http-equiv” on element “meta”.

CSS: Parse Error.

Duplicate ID “user_login”.

The “align” attribute on the “div” element is obsolete. Use CSS instead.

Bad value “” for attribute “src” on element “img”: Must be non-empty.

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

Dwhd.org Desktop Performance

Last tested: 06/01/2017

Desktop Speed

72%

Optimize images

Avoid landing page redirects

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

Leverage browser caching

Minify CSS

Minify JavaScript

Desktop Resource Breakdown

Total Resources	37
Number of Hosts	2
Static Resources	15
JavaScript Resources	13
CSS Resources	5

Dwhd.org Mobile Insights

Last tested: 06/01/2017

Mobile Usability

99%

Size tap targets appropriately

Mobile Speed

57%

Avoid landing page redirects

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

Leverage browser caching

Optimize images

Minify CSS

Minify JavaScript

Mobile Resource Breakdown

Total Resources	33
Number of Hosts	2
Static Resources	11
JavaScript Resources	13
CSS Resources	5

Dwhd.org Common Typos

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Dwhd.org Linux–不是那么难 | 学习Linux–那么难是不？

Legion是一个个人的linux学习记录型博客，本人不望博客多出名，只期待自己能把自己在linux路上的点点滴滴都做个记录

Dwhd.org Overview

Dwhd.org Rank Summary

Dwhd.org Website Safety

Dwhd.org Rank History

Dwhd.org Hosting Information

Dwhd.org Domain Registration and Settings

Dwhd.org HTML Check

Dwhd.org Desktop Performance

Dwhd.org Mobile Insights

Dwhd.org Similar Audits

Dwhd.org Common Typos