DeltaMi - portal popularnonaukowy miesięcznika Delta

DeltaMi - portal popularnonaukowy miesięcznika Delta - matematyka, fizyka, informatyka, astronomia, nauki przyrodnicze.

Online Status

Server IP address resolved: No
Http response code: None
Last Checked: 06/01/2023 traffic volume is 406 unique daily visitors and their 1,054 pageviews. The web value rate of is 9,373 USD. Each visitor makes around 2.78 page views on average.

By Alexa's traffic estimates placed at 26,522 position over the world, while the largest amount of its visitors comes from Poland, where it takes 21,268 place.

Perfect for that their data center (provided by company company University of Warsaw) is located in Poland, as that empowers most of the visitors to reduce the page load time. See the list of other web pages hosted by University of Warsaw. registered under .PL top-level domain. Check other websites in .PL zone.

The last verification results, performed on (June 21, 2019) show that has an expired wildcard SSL certificate (expired on April 25, 2021). Click “Refresh” button for SSL Information at the Safety Information section.

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

Relying Google MobileFriendly test is well optimized for mobile and tablet devices, however web page loading speed may be improved.

Global Rank
Average Load Time
Links In Count
Website Value

Last Updated: 06/01/2023
Overall result - 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: 04/03/2023 is safe.
Norton ConnectSafe evaluates for any unsafe and insecure content. The results are critical for families with young children.
Google Safe Search
Last Updated: 01/13/2017 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 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: 03/03/2021 is safe.
McAfee assesses 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 for mature or inappropriate content, only security checks are evaluated.
Web of Trust
Last Updated: 01/11/2019 child safety is very good.
The WOT calculates reputation of the This reputation system receives ratings from users and information from third-party sources, assesses the for safety features and confirms, whether is suitable for children.

SSL Information
Issuer OrganizationUnknown
Valid form01/21/2019
SignedCertificate is not self signed
Additional Domains *
Server Location

ASN Information

ASN ID: 8890
ASN Title: University of Warsaw

Last Update: 04/20/2023

% This is the RIPE Database query service.
% The objects are in RPSL format.
% The RIPE Database is subject to Terms and Conditions.
% See

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

% Information related to 'AS8771 - AS9128'

as-block: AS8771 - AS9128
descr: RIPE NCC ASN block
remarks: These AS Numbers are assigned to network operators in the RIPE NCC service region.
created: 2010-05-11T11:44:47Z
last-modified: 2014-02-24T13:15:16Z
source: RIPE

% Information related to 'AS8890'

% Abuse contact for 'AS8890' is ''

aut-num: AS8890
as-name: UW-AS
remarks: Warsaw, Poland
org: ORG-IA45-RIPE
admin-c: UWPL
tech-c: UWPL
status: ASSIGNED
mnt-by: UW-PL
created: 1970-01-01T00:00:00Z
last-modified: 2017-11-15T09:14:11Z
source: RIPE # Filtered
remarks: # Communities accepted by UW (8890:xxxx):
remarks: 8890:65281 no-export rfc1997
remarks: 8890:65282 no-advertise rfc1997
remarks: # Peer and client traffic engineering communities:
remarks: Prepend X times to peer AA
remarks: 8890:1XAA
remarks: AA = 01 - AS8501 PIONIER-AS
remarks: AA = 02 - AS8664 ICM-PUB
remarks: AA = 03 - AS24724 ATMAN (Transit Global)
remarks: AA = 04 - AS1887 NASK-ACADEMIC
remarks: AA = 05 - AS24748 ATMAN-Poland-AS (THINX)
remarks: AA = 06 - AS12464 PW-NET
remarks: AA = 07 - AS20555 WSISIZ-AS
remarks: AA = 08 - AS15396 ICM-COM
remarks: AA = 09 - AS6939 HURRICANE
remarks: X = 0 - do not advertise to given peer
remarks: X = 1 - prepend 1x
remarks: X = 2 - prepend 2x
remarks: X = 3 - prepend 3x
remarks: X = 4 - prepend 4x
remarks: Note: we accept MED
remarks: # UW localpref settings:
remarks: 100 - for our direct peers, customers and IXP
remarks: 50 - for backup peerings and other
remarks: # UW med settings (in):
remarks: +10 - for primary peer session
remarks: +100 - for backup peer session
remarks: # UW med settings (out):
remarks: 1000 - for backup peer session
remarks: Contact details:
import: from AS8501 accept ANY
import: from AS8664 accept ANY
import: from AS1887 accept AS1887
import: from AS24748 accept AS24748:AS-ICM
import: from AS24724 action pref=50; accept ANY;
import: from AS12464 accept AS12464
import: from AS20555 accept AS20555
import: from AS15396 accept ANY
import: from AS6939 accept ANY
export: to AS8501 announce AS8890:AS-IXP
export: to AS8664 announce AS8890:AS-IXP
export: to AS1887 announce AS8890:AS-IXP
export: to AS24748 announce AS8890:AS-IXP
export: to AS24724 announce AS8890:AS-IXP
export: to AS12464 announce AS8890:AS-IXP
export: to AS20555 announce AS8890:AS-IXP
export: to AS15396 announce AS8890:AS-IXP
export: to AS6939 announce AS8890:AS-IXP

organisation: ORG-IA45-RIPE
org-name: University of Warsaw
org-type: LIR
address: Krakowskie Przedmiescie 26/28
address: 00-927
address: Warsaw
address: POLAND
phone: +48225520527
fax-no: +48225520837
admin-c: UWPL
tech-c: UWPL
abuse-c: UWPL
mnt-ref: RIPE-NCC-HM-MNT
mnt-ref: UW-PL
mnt-by: UW-PL
created: 2004-04-17T11:47:16Z
last-modified: 2016-06-24T10:43:20Z
source: RIPE # Filtered

role: University of Warsaw Network Department
address: Dzial Sieci Komputerowych
address: Uniwersytet Warszawski
address: Krakowskie Przedmiescie 26/28
address: 00-927 Warszawa
address: Poland
phone: +48 22 5520527
fax-no: +48 22 8284195
admin-c: PMIC1-RIPE
tech-c: PMIC1-RIPE
tech-c: BJAN111-RIPE
tech-c: MJB1
tech-c: DAVE5-RIPE
tech-c: PZOL1-RIPE
nic-hdl: UWPL
mnt-by: UW-PL
created: 2011-09-13T15:09:39Z
last-modified: 2014-11-20T16:51:58Z
source: RIPE # Filtered

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


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DNS Records
HostA RecordTTL
HostMX RecordPriorityTTL
HostNS RecordTTL
HostTXT RecordTTL Delta86400
TTL: 86400
Email address:
Serial: 2022091600
Refresh: 28800
Retry: 7200
Expire: 604800
Minimum: 86400



Last tested: 06/23/2019

Desktop Speed

Desktop Resource Breakdown
Total Resources244
Number of Hosts7
Static Resources231
JavaScript Resources11
CSS Resources8

Last tested: 06/27/2019

Mobile Usability
Mobile Speed

Mobile Resource Breakdown
Total Resources245
Number of Hosts7
Static Resources232
JavaScript Resources11
CSS Resources9