astron.nl - ASTRON | Making discoveries in radio astronomy happen

Astron.nl Quick Summary

Status

Offline

Server IP address resolved: No

Http response code: None

Last Checked: 05/20/2024

Astron.nl traffic estimate is about 558 unique visitors and 558 pageviews per day. The approximated value of astron.nl is 5,840 USD. Every unique visitor makes about 1 pageviews on average.

Alexa Traffic Rank estimates that astron.nl is ranked number 27,082 in the world.

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

During the last check (April 24, 2021) astron.nl has an expired SSL certificate issued by GEANT Vereniging (expired on July 09, 2022), please click the “Refresh” button for SSL Information at the Safety Information section. Check other websites using SSL certificates issued by GEANT Vereniging.

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

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

Astron.nl General Information

Astron.nl Audience Geography

Where are website visitors coming from?

Visitors
Pageviews
Ranks

Country	Visitors

Astron.nl Traffic Distribution

Where do visitors go on astron.nl?

Subdomain Traffic
Views per User
Subdomain Reach

Subdomain	Pageviews

Astron.nl Popularity

How popular is astron.nl?

Global Rank
Pageviews
Reach

Period	Global Rank	Global Rank Delta
past 3 months	1236867	478313
past month	858049	-998892
past week	314913	0
yesterday	63515	0

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	1748389	745495	1	-53.202%	1	-23.42%
30	1247472	-628365	2	90%	1	-51.22%
7	505501	0	7	0%	1	0%
1	114296	0	6	0%	1	0%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	1065906	372066	4	-38.91%
30	680811	-1250098	7	300%
7	239170	0	3	0%
1	47506	0	20	0%

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Astron.nl Safety Information

Rankchart Summary

Safe

Updated: 05/20/2024

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: 02/21/2024

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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: 05/17/2017

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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: 02/18/2021

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McAfee assesses astron.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 astron.nl 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 astron.nl. This reputation system receives ratings from users and information from third-party sources, assesses the astron.nl for safety features and confirms, whether astron.nl is suitable for children.

Astron.nl SSL Information

Information about SSL/TLS certificates

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Domain	www.astron.nl
Issuer Organization	GEANT Vereniging
Issuer	GEANT OV RSA CA 4
Algorithm	RSA-SHA384
Valid form	07/09/2020
Expiration	07/09/2022
Signed	Certificate is not self signed
Additional Domains	www.astron.nl astron.nl intranet.astron.nl intranet.jive.eu intranet.jive.nl jive.eu jive.nl www.jive.eu www.jive.nl

SSL Checker

Astron.nl Server Information

Astron.nl Server Location

Where website hosting server is located?

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Astron.nl ASN Information

Information about IP address owner

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ASN ID: 1103

ASN Title: SURFnet bv

Updated: 03/16/2024

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
import: from AS42 accept AS-PCH
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import: from AS24730 accept as24730
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import: from AS34177 accept AS34177
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import: from AS34305 accept AS-EUROACCESS
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import: from AS199524 accept AS199524
import: from AS203769 accept AS203769
import: from AS206130 accept AS206130
import: from AS206350 accept AS206350
export: to AS42 announce AS-SURFNET
export: to AS112 announce AS-SURFNET
export: to AS260 announce AS-SURFNET
export: to AS286 announce AS-SURFNET
export: to AS288 announce AS-SURFNET
export: to AS293 announce AS-SURFNET
export: to AS513 announce AS-SURFNET
export: to AS702 announce AS-SURFNET
export: to AS714 announce AS-SURFNET
export: to AS1101 announce AS-SURFNET
export: to AS1102 announce AS-SURFNET
export: to AS1104 announce ANY
export: to AS1124 announce {0.0.0.0/0}
export: to AS1125 announce AS-SURFNET
export: to AS1126 announce {0.0.0.0/0}
export: to AS1128 announce {0.0.0.0/0}
export: to AS1132 announce AS-SURFNET
export: to AS1133 announce AS-SURFNET
export: to AS1136 announce AS-SURFNET
export: to AS1139 announce {0.0.0.0/0}
export: to AS1140 announce ANY
export: to AS1142 announce {0.0.0.0/0}
export: to AS1145 announce AS-SURFNET
export: to AS1147 announce AS-SURFNET
export: to AS1148 announce AS-SURFNET
export: to AS1151 announce AS-SURFNET
export: to AS1161 announce {0.0.0.0/0}
export: to AS1162 announce {0.0.0.0/0}
export: to AS1200 announce ANY
export: to AS1837 announce AS-SURFNET
export: to AS1888 announce {0.0.0.0/0}
export: to AS2018 announce AS-SURFNET
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export: to AS2603 announce AS-SURFNET
export: to AS2611 announce AS-SURFNET
export: to AS2686 announce AS-SURFNET
export: to AS2906 announce AS-SURFNET
export: to AS2907 announce AS-SURFNET
export: to AS2914 announce AS-SURFNET
export: to AS3209 announce AS-SURFNET
export: to AS3257 announce AS-SURFNET
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export: to AS3292 announce AS-SURFNET
export: to AS3303 announce AS-SURFNET
export: to AS3333 announce ANY
export: to AS4589 announce AS-SURFNET
export: to AS4651 announce AS-SURFNET
export: to AS5390 announce AS-SURFNET
export: to AS5406 announce AS-SURFNET
export: to AS5410 announce AS-SURFNET
export: to AS5413 announce AS-SURFNET
export: to AS5459 announce AS-SURFNET
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export: to AS6507 announce AS-SURFNET
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export: to AS6777 action community .= { 6777:6777 }; announce AS-SURFNET
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export: to AS25152 announce ANY
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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)

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HTML markup errors and warnings

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Errors:

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

A document must not include more than one “meta” element with a “http-equiv” attribute whose value is “content-type”.

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.

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

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

Stray end tag “span”.

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

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

Unclosed element “span”.

The “font” element is obsolete. Use CSS instead.

Attribute “width” not allowed on element “a” at this point.

Attribute “height” not allowed on element “a” at this point.

The “hspace” attribute on the “img” element is obsolete. Use CSS instead.

The “vspace” attribute on the “img” element is obsolete. Use CSS instead.

Warnings:

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

HTML Validator

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Speed
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Speed

69%

Enable compression

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Reduce server response time

Leverage browser caching

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Updated: 12/03/2015

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Usability

64%

Use legible font sizes

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Size content to viewport

Updated: 06/01/2017

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Total Resources	73
Number of Hosts	5
Static Resources	70
JavaScript Resources	13
CSS Resources	19

CSS	103.1 KBytes
Images	323.8 KBytes
HTML	131.0 KBytes
JavaScript	290.9 KBytes

Total Resources	68
Number of Hosts	4
Static Resources	66
JavaScript Resources	13
CSS Resources	19

CSS	110.9 KBytes
Images	504.7 KBytes
HTML	141.4 KBytes
JavaScript	229.8 KBytes

Astron.nl ASTRON | Making discoveries in radio astronomy happen

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