leidenuniv.nl - Home - Universiteit Leiden

Leidenuniv.nl Quick Summary

Status

Online

Server IP address resolved: Yes

Http response code: 200

Response time: 4.00 sec.

Last Checked: 04/25/2024

Leidenuniv.nl traffic estimate is about 5,527 unique visitors and 23,987 pageviews per day. The approximated value of leidenuniv.nl is 420,480 USD. Every unique visitor makes about 4.34 pageviews on average.

Alexa Traffic Rank estimates that leidenuniv.nl is ranked number 5,160 in the world, while most of its traffic comes from Netherlands, where it occupies as high as 186 place.

It’s good for leidenuniv.nl that their hosting company SURFnet bv is located in Netherlands, as that provides the majority of their visitors to benefit from the faster page load time. See the list of other websites hosted by SURFnet bv.

Leidenuniv.nl is registered under .NL top-level domain. Check other websites in .NL zone.

During the last check (November 27, 2019) leidenuniv.nl has an expired SSL certificate issued by TERENA (expired on May 04, 2021), please click the “Refresh” button for SSL Information at the Safety Information section. Check other websites using SSL certificates issued by TERENA.

In accordance with Google Safe Browsing, Google Safe Search, Symantec and Web of Trust leidenuniv.nl is pretty a safe domain.

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

Leidenuniv.nl General Information

Leidenuniv.nl Audience Geography

Where are website visitors coming from?

Visitors
Pageviews
Ranks

Country	Visitors
Netherlands NL	66.2%
United States US	5%
India IN	3.3%
United Kingdom GB	2.1%
France FR	1.3%
Ethiopia ET	1.2%
Switzerland CH	1.2%
Israel IL	1%
Nigeria NG	1%
Other	17.8%

Country	Rank
Netherlands NL	186
Ethiopia ET	2927
Israel IL	5929
Switzerland CH	7717
Philippines PH	14737
Nigeria NG	15277
South Africa ZA	19566
Indonesia ID	25231
Pakistan PK	26783
United Kingdom GB	35689
Poland PL	38471
India IN	41323

Leidenuniv.nl Traffic Distribution

Where do visitors go on leidenuniv.nl?

Subdomain Traffic
Views per User
Subdomain Reach

Subdomain	Pageviews
blackboard.leidenuniv.nl	37.22%
usis.leidenuniv.nl	11.57%
ezproxy.leidenuniv.nl	8.89%
studiegids.leidenuniv.nl	8.41%
campus.leidenuniv.nl	5.85%
webmail.leidenuniv.nl	5.03%
catalogue.leidenuniv.nl	4.36%
openaccess.leidenuniv.nl	3.4%
webprint.leidenuniv.nl	3.02%
uaccess.leidenuniv.nl	2.21%
other	10.06%

Subdomain	Views per User
readeronline.leidenuniv.nl	7
ezproxy.leidenuniv.nl	6.5
blackboard.leidenuniv.nl	5.1
webprint.leidenuniv.nl	4.1
usis.leidenuniv.nl	3.9
studiegids.leidenuniv.nl	3.7
campus.leidenuniv.nl	3.3
uaccess.leidenuniv.nl	3
hop.leidenuniv.nl	3
strw.leidenuniv.nl	2.2
other	1.25

Subdomain	Reach
blackboard.leidenuniv.nl	37.7%
webmail.leidenuniv.nl	18.72%
usis.leidenuniv.nl	15.25%
openaccess.leidenuniv.nl	14.85%
studiegids.leidenuniv.nl	11.59%
catalogue.leidenuniv.nl	11.24%
campus.leidenuniv.nl	9.13%
ezproxy.leidenuniv.nl	6.96%
leidenuniv.nl	4.63%
math.leidenuniv.nl	4.13%
other	22.83%

Leidenuniv.nl Popularity

How popular is leidenuniv.nl?

Global Rank
Pageviews
Reach

Period	Global Rank	Global Rank Delta
past 3 months	27552	6662
past month	22859	-9796
past week	20257	-3305
yesterday	14819	-6880

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	23693	6336	297	-30.39%	4.34	-3.56%
30	17784	-13875	412	93%	5.1	42%
7	17640	-1040	421	5%	4.4	-13.07%
1	15722	-4320	49	30%	3.5	-16.18%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	31254	7397	254	-27.9%
30	27084	-8340	30	36%
7	23186	-4616	35	20%
1	15923	-8785	53	60%

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Leidenuniv.nl Safety Information

Rankchart Summary

Safe

Updated: 04/25/2024

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: 03/21/2024

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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: 02/09/2019

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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: 02/22/2021

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McAfee assesses leidenuniv.nl 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 leidenuniv.nl for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Child safety is very good

Updated: 01/09/2019

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

Leidenuniv.nl SSL Information

Information about SSL/TLS certificates

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Domain	www.universiteitleiden.nl
Issuer Organization	TERENA
Issuer	TERENA SSL CA 3
Algorithm	RSA-SHA256
Valid form	04/30/2019
Expiration	05/04/2021
Signed	Certificate is not self signed
Additional Domains	cms.universiteitleiden.nl www.universiteitleiden.nl universiteitleiden.nl cms.dis.leidenuniv.nl www.dis.leidenuniv.nl www.leidenuniv.nl leidenuniv.nl www.student.universiteitleiden.nl www.staff.universiteitleiden.nl www.medewerkers.universiteitleiden.nl www.organisatiegids.universiteitleiden.nl www.bibliotheek.universiteitleiden.nl www.library.universiteitleiden.nl staff.universiteitleiden.nl bibliotheek.universiteitleiden.nl organisatiegids.universiteitleiden.nl student.universiteitleiden.nl medewerkers.universiteitleiden.nl library.universiteitleiden.nl site1.student.universiteitleiden.nl site1.staff.universiteitleiden.nl site1.medewerkers.universiteitleiden.nl site2.student.universiteitleiden.nl site2.staff.universiteitleiden.nl site2.medewerkers.universiteitleiden.nl wulp-1-p1.web.leidenuniv.nl secure.universiteitleiden.nl wulp-2-p1.web.leidenuniv.nl www.luf.nl luf.nl m.usis.leidenuniv.nl webapp.usis.leidenuniv.nl

SSL Checker

Leidenuniv.nl Server Information

Leidenuniv.nl Server Location

Where website hosting server is located?

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Leidenuniv.nl ASN Information

Information about IP address owner

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ASN ID: 1103

ASN Title: SURFnet bv

Updated: 10/03/2023

Raw ASN data:

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See http://www.ripe.net/db/support/db-terms-conditions.pdf

% Note: this output has been filtered.
% To receive output for a database update, use the "-B" flag.

% Information related to 'AS1101 - AS1200'

as-block: AS1101 - AS1200
descr: RIPE NCC ASN block
remarks: These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by: RIPE-NCC-HM-MNT
created: 2002-08-22T14:57:50Z
last-modified: 2014-02-24T13:15:15Z
source: RIPE

% Information related to 'AS1103'

% Abuse contact for 'AS1103' is 'cert@surfnet.nl'

aut-num: AS1103
as-name: SURFNET-NL
descr: SURFnet, The Netherlands
org: ORG-Sb3-RIPE
remarks: For security/abuse issues:
remarks: "mnt-irt: irt-SURFnet-CERT" or
remarks: contact
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export: to AS42 announce AS-SURFNET
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export: to AS1145 announce AS-SURFNET
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export: to AS14907 announce AS-SURFNET
export: to AS15133 announce AS-SURFNET
export: to AS15169 announce AS-SURFNET
export: to AS15412 announce AS-SURFNET
export: to AS15426 announce AS-SURFNET
export: to AS15435 announce AS-SURFNET
export: to AS15516 announce AS-SURFNET
export: to AS15542 announce AS-SURFNET
export: to AS15557 announce AS-SURFNET
export: to AS15600 announce AS-SURFNET
export: to AS15703 announce AS-SURFNET
export: to AS15772 announce AS-SURFNET
export: to AS15830 announce AS-SURFNET
export: to AS15879 announce AS-SURFNET
export: to AS16265 announce AS-SURFNET
export: to AS16276 announce AS-SURFNET
export: to AS16298 announce AS-SURFNET
export: to AS16509 announce AS-SURFNET
export: to AS17579 announce AS-SURFNET
export: to AS18106 announce AS-SURFNET
export: to AS19679 announce AS-SURFNET
export: to AS20485 announce AS-SURFNET
export: to AS20495 announce AS-SURFNET
export: to AS20504 announce AS-SURFNET
export: to AS20507 announce AS-SURFNET
export: to AS20562 announce AS-SURFNET
export: to AS20634 announce AS-SURFNET
export: to AS20640 announce AS-SURFNET
export: to AS20847 announce AS-SURFNET
export: to AS20857 announce AS-SURFNET
export: to AS20932 announce AS-SURFNET
export: to AS20940 announce AS-SURFNET
export: to AS20953 announce AS-SURFNET
export: to AS20965 announce AS-SURFNET
export: to AS20969 announce AS-SURFNET
export: to AS21221 announce AS-SURFNET
export: to AS21320 announce AS-SURFNET
export: to AS21263 announce AS-SURFNET
export: to AS21371 announce AS-SURFNET
export: to AS21478 announce AS-SURFNET
export: to AS22822 announce AS-SURFNET
export: to AS24167 announce AS-SURFNET
export: to AS24586 announce AS-SURFNET
export: to AS24642 announce AS-SURFNET
export: to AS24730 announce AS-SURFNET
export: to AS24875 announce AS-SURFNET
export: to AS24940 announce AS-SURFNET
export: to AS25074 announce AS-SURFNET
export: to AS25151 announce AS-SURFNET
export: to AS25152 announce ANY
export: to AS25182 announce AS-SURFNET
export: to AS25220 announce AS-SURFNET
export: to AS25459 announce AS-SURFNET
export: to AS25542 announce AS-SURFNET
export: to AS25596 announce AS-SURFNET
export: to AS28685 announce AS-SURFNET
export: to AS28757 announce AS-SURFNET
export: to AS28788 announce AS-SURFNET
export: to AS28876 announce AS-SURFNET
export: to AS28929 announce AS-SURFNET
export: to AS29075 announce AS-SURFNET
export: to AS29208 announce AS-SURFNET
export: to AS29263 announce AS-SURFNET
export: to AS29396 announce AS-SURFNET
export: to AS29462 announce AS-SURFNET
export: to AS30094 announce AS-SURFNET
export: to AS30132 announce AS-SURFNET
export: to AS30781 announce AS-SURFNET
export: to AS30889 announce AS-SURFNET
export: to AS31019 announce AS-SURFNET
export: to AS31027 announce AS-SURFNET
export: to AS31216 announce AS-SURFNET
export: to AS31477 announce AS-SURFNET
export: to AS31500 announce AS-SURFNET
export: to AS31529 announce AS-SURFNET
export: to AS31800 announce AS-SURFNET
export: to AS32787 announce AS-SURFNET
export: to AS32934 announce AS-SURFNET
export: to AS33891 announce AS-SURFNET
export: to AS33915 announce AS-SURFNET
export: to AS34106 announce AS-SURFNET
export: to AS34141 announce AS-SURFNET
export: to AS34177 announce AS-SURFNET
export: to AS34288 announce AS-SURFNET
export: to AS34305 announce AS-SURFNET
export: to AS34307 announce AS-SURFNET
export: to AS34309 announce AS-SURFNET
export: to AS34655 announce AS-SURFNET
export: to AS34762 announce AS-SURFNET
export: to AS34968 announce AS-SURFNET
export: to AS35332 announce AS-SURFNET
export: to AS35745 announce AS-SURFNET
export: to AS36408 announce AS-SURFNET
export: to AS36692 announce AS-SURFNET
export: to AS37100 announce AS-SURFNET
export: to AS37271 announce AS-SURFNET
export: to AS37468 announce AS-SURFNET
export: to AS39309 announce AS-SURFNET
export: to AS39326 announce AS-SURFNET
export: to AS39647 announce AS-SURFNET
export: to AS39704 announce AS-SURFNET
export: to AS41552 announce AS-SURFNET
export: to AS41692 announce AS-SURFNET
export: to AS41695 announce AS-SURFNET
export: to AS41887 announce AS-SURFNET
export: to AS41913 announce AS-SURFNET
export: to AS42165 announce AS-SURFNET
export: to AS42385 announce AS-SURFNET
export: to AS42707 announce AS-SURFNET
export: to AS43437 announce AS-SURFNET
export: to AS44654 announce AS-SURFNET
export: to AS46489 announce AS-SURFNET
export: to AS47195 announce AS-SURFNET
export: to AS47886 announce AS-SURFNET
export: to AS48283 announce AS-SURFNET
export: to AS49544 announce AS-SURFNET
export: to AS49685 announce AS-SURFNET
export: to AS49820 announce AS-SURFNET
export: to AS50056 announce AS-SURFNET
export: to AS50266 announce AS-SURFNET
export: to AS50295 announce AS-SURFNET
export: to AS51088 announce AS-SURFNET
export: to AS54113 announce AS-SURFNET
export: to AS57866 announce AS-SURFNET
export: to AS57976 announce AS-SURFNET
export: to AS59964 announce AS-SURFNET
export: to AS60144 announce AS-SURFNET
export: to AS62402 announce AS-SURFNET
export: to AS197000 announce AS-SURFNET
export: to AS197219 announce AS-SURFNET
export: to AS199524 announce AS-SURFNET
export: to AS203769 announce AS-SURFNET
export: to AS206130 announce AS-SURFNET
export: to AS206350 announce AS-SURFNET
admin-c: SNS1-RIPE
tech-c: SNS1-RIPE
status: LEGACY
mnt-by: RIPE-NCC-LEGACY-MNT
mnt-by: AS1103-MNT
created: 2002-09-23T12:44:58Z
last-modified: 2018-06-12T11:42:55Z
source: RIPE

organisation: ORG-Sb3-RIPE
org-name: SURFnet bv
org-type: LIR
address: P.O. Box 19035
address: 3501 DA
address: Utrecht
address: NETHERLANDS
phone: +31887873000
admin-c: HT3384-RIPE
admin-c: MK512-RIPE
admin-c: SNS1-RIPE
admin-c: JK9622-RIPE
admin-c: RVR19-RIPE
admin-c: WB311-RIPE
admin-c: NO17-RIPE
admin-c: RS957-RIPE
admin-c: SM12780-RIPE
abuse-c: SNS1-RIPE
mnt-ref: RIPE-NCC-HM-MNT
mnt-ref: SN-LIR-MNT
mnt-by: RIPE-NCC-HM-MNT
mnt-by: SN-LIR-MNT
created: 2004-04-17T11:43:29Z
last-modified: 2017-08-25T09:59:29Z
source: RIPE # Filtered

role: SURFnet Network Services
address: Kantoren Hoog Overborch (Hoog Catharijne)
address: Moreelsepark 48, 3511 EP Utrecht
address: Postbus 19035, 3501 DA Utrecht
phone: +31 88 7873000
admin-c: JK9622-RIPE
tech-c: NO17-RIPE
tech-c: JK9622-RIPE
tech-c: MK512-RIPE
nic-hdl: SNS1-RIPE
abuse-mailbox: cert@surfnet.nl
mnt-by: AS1103-MNT
created: 2002-07-09T10:06:06Z
last-modified: 2017-08-25T12:01:47Z
source: RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.91.2 (HEREFORD)

Geolocation

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Leidenuniv.nl Domain Name Information

Leidenuniv.nl DNS Information

Domain name service records

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Host	A Record	TTL
leidenuniv.nl	132.229.13.193	300

Host	MX Record	Priority	TTL
leidenuniv.nl	mx1.surfmailfilter.nl	20	21600
leidenuniv.nl	mx2.surfmailfilter.nl	20	21600

Host	NS Record	TTL
leidenuniv.nl	indigo.leidenuniv.nl	21600
leidenuniv.nl	violet.leidenuniv.nl	21600
leidenuniv.nl	ns1.surfnet.nl	21600

Host	TXT Record	TTL
leidenuniv.nl	MS=ms65516456	3600
leidenuniv.nl	MS=ms83046425	3600
leidenuniv.nl		3600
leidenuniv.nl	v=spf1 include:_spfout.mf.surf.net include:_spf.smtp.leidenuniv.nl include:_spf.mcx.leidenuniv.nl include:spf.faqtory.nl include:_spf.saasplaza.com include:spf.nroute.de ?all	3600

Leidenuniv.nl Whois Information

Information about registered users or assignees of an Internet resource

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Raw WHOIS data:

Whois

DNS Lookup

Leidenuniv.nl HTML Validation

Leidenuniv.nl W3C HTML Markup Validation

HTML markup errors and warnings

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Errors:

When the “srcset” attribute has any image candidate string with a width descriptor, the “sizes” attribute must also be present.

Warnings:

Consider using the “h1” element as a top-level heading only (all “h1” elements are treated as top-level headings by many screen readers and other tools).

HTML Validator

Leidenuniv.nl Desktop Performance

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Website desktop performance and usability tips

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Speed
Resource Breakdown

Speed

71%

Enable compression

Leverage browser caching

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

Reduce server response time

Minify CSS

Optimize images

Minify HTML

Minify JavaScript

Updated: 09/04/2016

Leidenuniv.nl Mobile Performance

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Usability
Speed
Resource Breakdown

Usability

99%

Size tap targets appropriately

Updated: 12/10/2019

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Total Resources	28
Number of Hosts	4
Static Resources	25
JavaScript Resources	8
CSS Resources	1

CSS	61.6 KBytes
Images	574.2 KBytes
HTML	16.4 KBytes
JavaScript	493.8 KBytes
Other	543.0 Bytes

Total Resources	56
Number of Hosts	16
Static Resources	20
JavaScript Resources	20
CSS Resources	1

CSS	166.0 KBytes
Images	842.4 KBytes
HTML	23.8 KBytes
JavaScript	1.1 MBytes
Other	116.1 KBytes

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