JavaStart - Kurs Programowania Java Online

Praktyczny kurs programowania Java 8 oraz Android. Rozpocznij swoją przygodę z programowaniem razem z nami lub skorzystaj z poprzedniej darmowej wersj...

Online Status

Server IP address resolved: Yes
Http response code: 200
Response time: 1.56 sec.
Last Checked: 10/07/2022 traffic volume is 2,614 unique daily visitors and their 3,921 pageviews. The web value rate of is 70,299 USD. Each visitor makes around 1.61 page views on average.

By Alexa's traffic estimates placed at 10,085 position over the world, while the largest amount of its visitors comes from Poland, where it takes 2,563 place.

Perfect for that their data center (provided by company company IWACOM Sp. z o.o) 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 IWACOM Sp. z o.o. registered under .PL top-level domain. Check other websites in .PL zone.

The last verification results, performed on (November 13, 2019) show that has an expired SSL certificate issued by Let's Encrypt (expired on January 16, 2020). Click “Refresh” button for SSL Information at the Safety Information section. Check the list of websites using SSL certificates issued by Let's Encrypt.

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: 10/07/2022
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: 03/22/2022 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: 10/30/2016 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: 02/24/2021 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: 01/10/2019 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 OrganizationLet's Encrypt
IssuerLet's Encrypt Authority X3
Valid form10/18/2019
SignedCertificate is not self signed
Additional Domains
Server Location

ASN Information

ASN ID: 41508
ASN Title: IWACOM Sp. z o.o.

Last Update: 04/30/2022

% 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 'AS40960 - AS45055'

as-block: AS40960 - AS45055
descr: RIPE NCC ASN block
remarks: These AS Numbers are assigned to network operators in the RIPE NCC service region.
created: 2015-12-10T09:19:56Z
last-modified: 2015-12-10T09:19:56Z
source: RIPE

% Information related to 'AS41508'

% Abuse contact for 'AS41508' is ''

aut-num: AS41508
as-name: PL-IWACOM-AS
import: from AS12968 action pref=100; accept ANY
export: to AS12968 announce AS41508
import: from AS39907 action pref=100; accept ANY
export: to AS39907 announce AS41508
admin-c: MP7920-RIPE
tech-c: MP7920-RIPE
status: ASSIGNED
mnt-by: pl-iwacom-1-mnt
mnt-routes: pl-iwacom-1-mnt
created: 2006-09-05T12:40:58Z
last-modified: 2018-06-29T12:38:38Z
source: RIPE

organisation: ORG-ISZO81-RIPE
org-name: IWACOM Sp. z o.o.
org-type: LIR
address: ul. Rewolucji 1905 r. nr 4
address: 90-273
address: Lodz
address: POLAND
geoloc: 51.7747725 19.455934
language: PL
admin-c: MP31738-RIPE
tech-c: MP31738-RIPE
abuse-c: AR44382-RIPE
mnt-ref: pl-iwacom-1-mnt
mnt-by: pl-iwacom-1-mnt
created: 2017-12-20T08:57:53Z
last-modified: 2018-01-03T15:17:42Z
source: RIPE # Filtered
phone: +48422335555

person: Mariusz Przednowek
address: IWACOM Sp. z o.o.
address: Rewolucji 1905r. 4
address: Lodz
address: POLAND
phone: +48 (42) 6300556
fax-no: +48 (42) 6300556
nic-hdl: MP7920-RIPE
mnt-by: MNT-IWACOM
created: 2005-07-25T07:47:56Z
last-modified: 2008-08-29T12:46:51Z
source: RIPE

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


request limit exceeded

DNS Records
HostA RecordTTL
HostMX RecordPriorityTTL
HostNS RecordTTL
HostTXT RecordTTL
javastart.plv=spf1 -all3600
TTL: 3600
Email address:
Serial: 2019081900
Refresh: 86400
Retry: 3600
Expire: 3600000
Minimum: 300


Last tested: 01/12/2019

Desktop Speed

Desktop Resource Breakdown
Total Resources33
Number of Hosts6
Static Resources25
JavaScript Resources7
CSS Resources4

Last tested: 01/12/2019

Mobile Usability
Mobile Speed

Mobile Resource Breakdown
Total Resources34
Number of Hosts6
Static Resources25
JavaScript Resources7
CSS Resources4