Astronomy.cz astronomy

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Last Checked: 05/03/2024

Astronomy.cz traffic estimate is about 2,718 unique visitors and 5,436 pageviews per day. The approximated value of astronomy.cz is 4,080 USD. Every unique visitor makes about 2 pageviews on average.

astronomy.cz is hosted by Brno University of Technology. See the list of other websites hosted by Brno University of Technology.

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During the last check (May 03, 2024) astronomy.cz has an invalid SSL certificate. please click the “Refresh” button for SSL Information at the Safety Information section.

In accordance with Google Safe Browsing and Symantec astronomy.cz is pretty a safe domain.

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Astronomy.cz Safety Information

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Updated: 05/03/2024

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Safe

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Safe

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Astronomy.cz SSL Information

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Domain	Unknown
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Astronomy.cz ASN Information

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ASN ID: 197451

ASN Title: Brno University of Technology

Updated: 03/12/2024

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 'AS196608 - AS207259'

as-block: AS196608 - AS207259
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: 2016-09-08T07:26:53Z
last-modified: 2016-09-08T07:26:53Z
source: RIPE

% Information related to 'AS197451'

% Abuse contact for 'AS197451' is 'abuse@vutbr.cz'

aut-num: AS197451
as-name: VUTBR-AS
org: ORG-BUOT1-RIPE
import: from AS2852 accept ANY
import: from AS6830 accept ANY
import: from AS2819 accept ANY
import: from AS60143 accept AS-BR-IX-RS
import: from AS15935 accept ANY
export: to AS2852 announce AS-VUTBR
export: to AS6830 announce AS-VUTBR
export: to AS2819 announce AS-VUTBR
export: to AS60143 announce AS-VUTBR
export: to AS15935 announce AS-VUTBR
mp-import: afi ipv6 from AS2852 accept ANY
mp-import: afi ipv4 from AS2852 accept ANY
mp-export: afi ipv6 to AS2852 announce AS197451
mp-export: afi ipv4 to AS2852 announce AS197451
admin-c: CA6319-RIPE
tech-c: CA6319-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: VUTBR-MNT
mnt-routes: VUTBR-MNT
created: 2010-12-08T11:00:29Z
last-modified: 2017-11-15T12:19:30Z
source: RIPE
remarks: ====================================================
remarks: Imported from:
remarks: rt:197451:100 - Exchange points + direct peering
remarks: rt:197451:101 - NIX.CZ
remarks: rt:197451:103 - SIX.SK
remarks: rt:197451:104 - NIX.SK
remarks: rt:197451:105 - BR-IX
remarks: rt:197451:106 - Peering.cz
remarks: rt:197451:199 - direct peering
remarks:
remarks: rt:197451:200 - Transit upstreams
remarks: rt:197451:201 - Liberty Global
remarks: rt:197451:202 - T-Mobile
remarks: rt:197451:203 - CESNET
remarks:
remarks: rt:197451:300 - Customers
remarks: rt:197451:301 - Internal networks
remarks:
remarks: Export to:
remarks: rt:197451:100x - exchange points + direct peering
remarks: rt:197451:1000 - shorten path to IXP
remarks: rt:197451:200x - transit upstreams
remarks:
remarks: where x is the number of prepends of AS197451
remarks: (1-3; 9 - not anounce)
remarks: =====================================================

organisation: ORG-BUOT1-RIPE
org-name: Brno University of Technology
org-type: LIR
address: Antoninska 548/1
address: 60190
address: Brno
address: CZECH REPUBLIC
phone: +420541145453
abuse-c: AR21405-RIPE
mnt-ref: RIPE-NCC-HM-MNT
mnt-ref: VUTBR-MNT
mnt-by: RIPE-NCC-HM-MNT
mnt-by: VUTBR-MNT
created: 2014-06-27T15:02:34Z
last-modified: 2016-08-08T10:05:31Z
source: RIPE # Filtered

role: Brno University of Technology - Backbone Admins
address: Brno University of Technology
address: Antoninska 1
address: 601 90 Brno
address: The Czech Republic
phone: +420 541145453
phone: +420 723047787
nic-hdl: CA6319-RIPE
mnt-by: VUT-BATCH-MNT
mnt-by: VUTBR-MNT
created: 2015-01-30T08:31:35Z
last-modified: 2016-11-04T14:01:52Z
source: RIPE # Filtered
abuse-mailbox: abuse@vutbr.cz

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

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Astronomy.cz HTML Validation

Astronomy.cz W3C HTML Markup Validation

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Errors:

Bad value “https://api.w.org/” for attribute “rel” on element “link”: The string “https://api.w.org/” is not a registered keyword.

Attribute “rel” not allowed on element “img” at this point.

No “p” element in scope but a “p” end tag seen.

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

Warnings:

The “complementary” role is unnecessary for element “aside”.

Empty heading.

The “language” attribute on the “script” element is obsolete. You can safely omit it.

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

HTML Validator

Astronomy.cz Desktop Performance

How Well Astronomy.cz Performs On Desktops?

Website desktop performance and usability tips

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Speed
Resource Breakdown

Speed

61%

Leverage browser caching

Enable compression

Avoid landing page redirects

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

Optimize images

Reduce server response time

Minify CSS

Minify JavaScript

Minify HTML

Updated: 08/21/2018

Astronomy.cz Mobile Performance

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Usability
Speed
Resource Breakdown

Usability

79%

Size content to viewport

Size tap targets appropriately

Updated: 08/21/2018

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Total Resources	78
Number of Hosts	11
Static Resources	42
JavaScript Resources	16
CSS Resources	6

Text	19.3 KBytes
CSS	114.1 KBytes
Images	603.1 KBytes
HTML	40.2 KBytes
JavaScript	590.1 KBytes
Other	36.6 KBytes

Total Resources	78
Number of Hosts	11
Static Resources	42
JavaScript Resources	16
CSS Resources	6

Text	19.3 KBytes
CSS	114.1 KBytes
Images	804.2 KBytes
HTML	40.2 KBytes
JavaScript	590.1 KBytes
Other	36.6 KBytes