Vnulib.edu.vn Thư viện Trung tâm ĐHQG-HCM

Central Library

Vnulib.edu.vn Overview

Vnulib.edu.vn ranking shows that the page is at position 1,505,561 over the world.

Vnulib.edu.vn hosting company servers are placed in the Viet Nam, but, unfortunately, it’s not possible to identify the countries where the bulk of vnulib.edu.vn users come from and, therefore, we couldn’t define if the distance can influence the webpage load time. See the list of other webpages hosted on VTDC-AS-VN Vietel - CHT Compamy Ltd, VN servers.

In terms of rank-to-traffic ratio, vnulib.edu.vn has 107 unique users per day, viewing 465 pages. The rank based value of vnulib.edu.vn is 3,154 USD. Every user makes 4.65 pageviews on average.

Vnulib.edu.vn boasts a link base consisting of 287 referring domains and 329 external backlinks, as revealed by the data obtained from web network scanning.

Vnulib.edu.vn top-level domain belongs to .VN domain zone. Check other webpages in .VN zone.

According the last verification test in July 04, 2024, vnulib.edu.vn has an expired wildcard SSL certificate issued by Sectigo Limited (expired on July 08, 2025). Click button “Update” SSL Information at the Safety Information section. Check the list of websites using SSL by Sectigo Limited.

Based on data from Google Safe Browsing, Google Safe Search, Symantec and Web of Trust vnulib.edu.vn is a fairly safe domain.

Based on Mobile-Friendly test by Google vnulib.edu.vn is poorly optimized for mobile phones and tablets. Remember that optimizing your website design for mobile devices ensures that all of your web pages perform well on all devices, page loading speed can also be accelerated.

Vnulib.edu.vn Rank Summary

Global Rank

1,505,561

Average Load Time

3.44sec

Links In Count

Website Value

$2,920

Audience Geography. Where are vnulib.edu.vn visitors located?

Country	Visitors

Country	Pageviews

Country	Rank

Where do visitors go on vnulib.edu.vn?

Subdomain	Pageviews

Subdomain	Pageviews per User

Subdomain	Reach

How popular is vnulib.edu.vn?

Period	Global Rank	Global Rank Delta
past 3 months	1505561	320431
past month	3374837	1469420
past week	2029951	0

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	1170449	-103327	2	20%	4.3	90%
30	2744421	1063721	1	-60.714%	3	-11.78%
7	1634939	0	1	0%	4	0%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	1808008	591172	19	-36%
30	3632709	1518707	7	-56.061%
7	2244771	0	1	0%

Vnulib.edu.vn Website Safety

Overview

Last Updated: 09/10/2025

Overall result - vnulib.edu.vn 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: 02/05/2025

vnulib.edu.vn is safe.

Norton ConnectSafe evaluates vnulib.edu.vn for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 03/21/2019

vnulib.edu.vn 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

vnulib.edu.vn 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: 01/07/2021

vnulib.edu.vn is safe.

McAfee assesses vnulib.edu.vn 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 vnulib.edu.vn for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/11/2019

vnulib.edu.vn child safety is very good.

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

SSL Information

SSL Checker Tool

Domain	*.vnulib.edu.vn
Issuer Organization	Sectigo Limited
Issuer	Sectigo RSA Domain Validation Secure Server CA
Algorithm	RSA-SHA256
Valid form	06/07/2024
Expiration	07/08/2025
Signed	Certificate is not self signed
Additional Domains	*.vnulib.edu.vn vnulib.edu.vn

Vnulib.edu.vn Rank History

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

Vnulib.edu.vn Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 38731

ASN Title: VTDC-AS-VN Vietel - CHT Compamy Ltd, VN

Last Update: 07/12/2025

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

% Information related to 'AS37888 - AS38911'

as-block: AS37888 - AS38911
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: 2009-09-29T06:04:16Z
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 'AS38725 - AS38739'

as-block: AS38725 - AS38739
descr: VNNIC-ASBLOCK-VN
descr: VNNIC
descr: Vietnam Network Information Center
country: VN
admin-c: TMT17-AP
tech-c: NHT16-AP
remarks: Block of 15 AS numbers from 38725 - 38739
remarks: for assignment to VNNIC members
mnt-by: APNIC-HM
mnt-lower: MAINT-VN-VNNIC
last-modified: 2015-08-05T00:58:13Z
source: APNIC

person: Nguyen Hong Thang
nic-hdl: NHT16-AP
e-mail: tech@vnnic.vn
address: Vietnam Internet Network Information Center
address: 18 Nguyen Du, Hai Ba Trung, Hanoi
phone: +84-4-35564944
fax-no: +84-4-37821462
country: VN
mnt-by: MAINT-VN-VNNIC
last-modified: 2015-08-04T01:56:01Z
source: APNIC

person: Tran Minh Tan
nic-hdl: TMT17-AP
e-mail: info@vnnic.vn
address: Vietnam Internet Network Information Center
address: 18 Nguyen Du, Hai Ba Trung, Hanoi
phone: +84-4-35564944
fax-no: +84-4-37821462
country: VN
mnt-by: MAINT-VN-VNNIC
last-modified: 2015-08-04T01:56:01Z
source: APNIC

% Information related to 'AS38731'

% Abuse contact for 'AS38731' is 'hm-changed@vnnic.vn'

aut-num: AS38731
as-name: VTDC-AS-VN
descr: Vietel - CHT Compamy Ltd
descr: Hoa Lac High Tech Park, Km 29 Lang Hoa Lac Highway, Thach That district, Ha Noi city
descr: VTDC-VN
country: VN
import: from AS7552 action pref=10; accept ANY
import: from AS3462 action pref=10; accept ANY
export: to AS7552 announce AS38731
export: to AS3462 announce AS38731
remarks: ASN for Vietel - CHT Compamy Ltd
admin-c: LDH23-AP
tech-c: DMH16-AP
notify: hm-changed@vnnic.net.vn
mnt-by: MAINT-VN-VNNIC
mnt-routes: MAINT-VN-VNNIC
mnt-irt: IRT-VNNIC-AP
last-modified: 2017-12-03T02:00:37Z
source: APNIC

irt: IRT-VNNIC-AP
address: Ha Noi, VietNam
phone: +84-24-35564944
fax-no: +84-24-37821462
e-mail: hm-changed@vnnic.vn
abuse-mailbox: hm-changed@vnnic.vn
admin-c: NTTT1-AP
tech-c: NTTT1-AP
auth: # Filtered
mnt-by: MAINT-VN-VNNIC
last-modified: 2017-11-08T09:40:06Z
source: APNIC

person: Dao Manh Hien
address: VTDC-VN
country: VN
phone: +84-24-62692126
e-mail: hiendm@viettelidc.com.vn
nic-hdl: DMH16-AP
mnt-by: MAINT-VN-VNNIC
last-modified: 2017-12-03T01:43:37Z
source: APNIC

person: Le Duc Hoang
address: VTDC-VN
country: VN
phone: +84-24-62692126
e-mail: hoangld@viettelidc.com.vn
nic-hdl: LDH23-AP
mnt-by: MAINT-VN-VNNIC
last-modified: 2017-12-03T01:42:22Z
source: APNIC

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

Vnulib.edu.vn Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

vnulib.edu.vn domain is not supported

DNS Records

DNS Lookup Tool

Host	A Record	TTL
vnulib.edu.vn	210.211.121.195	86400

Host	MX Record	Priority	TTL
vnulib.edu.vn	mail.vnulib.edu.vn.vnulib.edu.vn	5	86400
vnulib.edu.vn	wmail.vnulib.edu.vn	0	86400

Host	NS Record	TTL
vnulib.edu.vn	server.vnuhcm.edu.vn	86400
vnulib.edu.vn	vnuserv.vnuhcm.edu.vn	86400

Host	TXT Record	TTL

server.vnuhcm.edu.vn
TTL: 86400
Email address: vnunet.vnuhcm.edu.vn
Serial: 2009080501
Refresh: 10800
Retry: 3600
Expire: 604800
Minimum: 86400

Vnulib.edu.vn HTML Check

HTML Validation Tool

Errors

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

The “profile” attribute on the “head” element is obsolete. To declare which “meta” terms are used in the document, instead register the names as meta extensions. To trigger specific UA behaviors, use a “link” element instead.

Bad value “screen, projection” for attribute “media” on element “link”: Deprecated media type “projection”. For guidance, see the Media Types section in the current Media Queries specification.

The “charset” attribute on the “link” element is obsolete. Use an HTTP Content-Type header on the linked resource instead.

Using the “meta” element to specify the document-wide default language is obsolete. Consider specifying the language on the root element instead.

Bad value “500px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Bad value “119px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.

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

Bad value “1px” for attribute “border” on element “img”: Only “0” is a permitted zero literal.

Bad value “27px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Bad value “25px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.

Bad value “2px” for attribute “border” on element “img”: Only “0” is a permitted zero literal.

The “border” attribute on the “table” element is obsolete. Use CSS instead.

Duplicate ID “vlfreeText01”.

Duplicate ID “all_scope”.

Duplicate ID “exlidInput_mediaType_1”.

Duplicate ID “exlidInput_precisionOperator_1”.

Duplicate ID “exlidInput_scope_1”.

Duplicate ID “title1”.

Duplicate ID “title2”.

Duplicate ID “dscnt”.

Duplicate ID “tab”.

Duplicate ID “srt”.

Duplicate ID “indx”.

Duplicate ID “fn”.

Duplicate ID “vid”.

Duplicate ID “ct”.

Duplicate ID “dum”.

Duplicate ID “vcl_scope”.

Duplicate ID “hut_scope”.

Duplicate ID “ush_scope”.

Duplicate ID “uel_scope”.

Duplicate ID “iul_scope”.

Duplicate ID “ier_scope”.

Bad value “attachment wp-att-3554” for attribute “rel” on element “a”: The string “wp-att-3554” is not a registered keyword.

Bad value “attachment wp-att-3577” for attribute “rel” on element “a”: The string “wp-att-3577” is not a registered keyword.

Bad value “attachment wp-att-3565” for attribute “rel” on element “a”: The string “wp-att-3565” is not a registered keyword.

Bad value “attachment wp-att-4268” for attribute “rel” on element “a”: The string “wp-att-4268” is not a registered keyword.

Bad value “attachment wp-att-3560” for attribute “rel” on element “a”: The string “wp-att-3560” is not a registered keyword.

Bad value “attachment wp-att-3562” for attribute “rel” on element “a”: The string “wp-att-3562” is not a registered keyword.

Bad value “attachment wp-att-3571” for attribute “rel” on element “a”: The string “wp-att-3571” is not a registered keyword.

Bad value “attachment wp-att-3589” for attribute “rel” on element “a”: The string “wp-att-3589” is not a registered keyword.

Bad value “attachment wp-att-4266” for attribute “rel” on element “a”: The string “wp-att-4266” is not a registered keyword.

Bad value “attachment wp-att-4271” for attribute “rel” on element “a”: The string “wp-att-4271” is not a registered keyword.

Bad value “attachment wp-att-4273” for attribute “rel” on element “a”: The string “wp-att-4273” is not a registered keyword.

Bad value “attachment wp-att-4276” for attribute “rel” on element “a”: The string “wp-att-4276” is not a registered keyword.

Bad value “attachment wp-att-4278” for attribute “rel” on element “a”: The string “wp-att-4278” is not a registered keyword.

Bad value “112px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Bad value “34px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.

Bad value “35px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.

Malformed byte sequence: “e1”, “bb”.

Warnings

The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.

The first occurrence of ID “vlfreeText01” was here.

The first occurrence of ID “all_scope” was here.

The first occurrence of ID “exlidInput_mediaType_1” was here.

The first occurrence of ID “exlidInput_precisionOperator_1” was here.

The first occurrence of ID “exlidInput_scope_1” was here.

The first occurrence of ID “title1” was here.

The first occurrence of ID “title2” was here.

The first occurrence of ID “dscnt” was here.

The first occurrence of ID “tab” was here.

The first occurrence of ID “srt” was here.

The first occurrence of ID “indx” was here.

The first occurrence of ID “fn” was here.

The first occurrence of ID “vid” was here.

The first occurrence of ID “ct” was here.

The first occurrence of ID “dum” was here.

The first occurrence of ID “vcl_scope” was here.

The first occurrence of ID “hut_scope” was here.

The first occurrence of ID “ush_scope” was here.

The first occurrence of ID “uel_scope” was here.

The first occurrence of ID “iul_scope” was here.

The first occurrence of ID “ier_scope” was here.

Vnulib.edu.vn Desktop Performance

Last tested: 01/10/2018

Desktop Speed

32%

Optimize images

Enable compression

Leverage browser caching

Reduce server response time

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

Minify JavaScript

Minify CSS

Minify HTML

Desktop Resource Breakdown

Total Resources	122
Number of Hosts	5
Static Resources	92
JavaScript Resources	30
CSS Resources	16

Vnulib.edu.vn Mobile Insights

Last tested: 01/10/2018

Mobile Usability

57%

Use legible font sizes

Size content to viewport

Size tap targets appropriately

Configure the viewport

Mobile Speed

25%

Optimize images

Leverage browser caching

Enable compression

Reduce server response time

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

Minify JavaScript

Minify CSS

Minify HTML

Mobile Resource Breakdown

Total Resources	133
Number of Hosts	5
Static Resources	93
JavaScript Resources	40
CSS Resources	16

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Vnulib.edu.vn Thư viện Trung tâm ĐHQG-HCM

Central Library

Vnulib.edu.vn Overview

Vnulib.edu.vn Rank Summary

Vnulib.edu.vn Website Safety

Vnulib.edu.vn Rank History

Vnulib.edu.vn Hosting Information

Vnulib.edu.vn Domain Registration and Settings

Vnulib.edu.vn HTML Check

Vnulib.edu.vn Desktop Performance

Vnulib.edu.vn Mobile Insights

Vnulib.edu.vn Similar Audits

Vnulib.edu.vn Common Typos