Kowalczyk.info Krzysztof Kowalczyk

Personal page of Krzysztof Kowalczyk. Programmer, creator of SumatraPDF.

Kowalczyk.info Overview

Kowalczyk.info is the personal website of Krzysztof Kowalczyk. Programming is his forte, which is evident from his introduction on the website. The domain name of the website is a .INFO top-level domain (TLD). The website is hosted by DigitalOcean, LLC, in the United States.

In terms of site traffic, it is estimated that Kowalczyk.info receives around 2373 unique users per day, which is a significant number. The website's value is also impressive, estimated at 52560 US dollars, which indicates the website's credibility and popularity.

The website's overall design is simple, with a white background and black text. The site's speed is impressive; PageSpeed Insights scores it 100, ensuring a fast response time, which is crucial in today's world, where slow sites may lead to users abandoning it. The website is user-friendly and has a clear user interface that indicates professionalism. Therefore, users of all ages can use the site without any trouble.

As a personal website, there are no obstacles regarding family-friendly content. The site's content is mainly about programming, software development, and related subjects. Therefore, it is unlikely to have content that may harm children or offend anyone. The site's content is directed towards professionals and individual researchers, and it is unlikely that the website will host adult content or any form of explicit material.

Next up, the website's menu options are simple yet essential, making navigation through the site easy. There are links to Krzysztof Kowalczyk's profile, his GitHub repository, his business, and his blog. All of these links are relevant and redirect to useful content related to programming, which will provide value to visitors.

In summary, Kowalczyk.info is a highly reliable and impressive website. It is family-friendly and has a simple design, making it easy to navigate through the site. The website's speed is remarkable, which ensures fast response times, and the website's content is relevant to programming, making it highly reliable and useful to professionals and individual researchers alike.

Kowalczyk.info Rank Summary

Global Rank

242,118

Average Load Time

1.07sec

Links In Count

1,384

Website Value

$52,613

Audience Geography. Where are kowalczyk.info visitors located?

Country	Visitors
United States US	29.6%
India IN	9.3%
Spain ES	5.9%
Canada CA	3.6%
Pakistan PK	1.4%
Indonesia ID	0.8%
Russian Federation RU	0.6%
Other	48.9%

Country	Pageviews
United States US	28.8%
India IN	9.8%
Spain ES	8.1%
Canada CA	3.2%
Pakistan PK	1.3%
Indonesia ID	0.8%
Russian Federation RU	0.7%
Other	47.6%

Country	Rank
Spain ES	67118
Pakistan PK	88540
India IN	116356
Canada CA	118471
United States US	138393
Indonesia ID	191262
Russian Federation RU	604003

Where do visitors go on kowalczyk.info?

Subdomain	Pageviews
blog.kowalczyk.info	100%

Subdomain	Pageviews per User
blog.kowalczyk.info	1.1

Subdomain	Reach
blog.kowalczyk.info	100%

How popular is kowalczyk.info?

Period	Global Rank	Global Rank Delta
past 3 months	242118	13920
past month	246723	-13279
past week	276793	89013
yesterday	333576	-1739268

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	392009	19689	9	-5.356%	1.2	2%
30	418111	32343	9	-7.451%	1.1	-24.66%
7	485136	157355	8	-41.27%	1	-6.306%
1	527775	-1648665	6	5000%	1	0%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	199402	12716	29	-7.013%
30	199025	-30712	3	20%
7	220155	68764	27	-37.61%
1	264010	-1760242	2	5000%

Kowalczyk.info Website Safety

Overview

Last Updated: 11/22/2024

Unknown status.

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: 01/22/2021

kowalczyk.info is safe.

Norton ConnectSafe evaluates kowalczyk.info for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 11/22/2024

Unknown status.

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

kowalczyk.info 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: 02/25/2021

kowalczyk.info is safe.

McAfee assesses kowalczyk.info 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 kowalczyk.info for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/10/2019

kowalczyk.info child safety is very good.

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

SSL Information

SSL Checker Tool

Domain	*.netlify.com
Issuer Organization	Unknown
Issuer	AlphaSSL CA - SHA256 - G2
Algorithm	RSA-SHA256
Valid form	11/23/2016
Expiration	11/24/2018
Signed	Certificate is not self signed
Additional Domains	*.netlify.com netlify.com

Kowalczyk.info Rank History

Alexa Rank shows how popular kowalczyk.info is in comparison with other sites. The most popular site has Alexa Rank equals 1. If kowalczyk.info has Alexa Rank equals 100,000, then it is in TOP 100,000 popular sites in the world. The rank is calculated using a combination of average daily visitors to kowalczyk.info and pageviews on kowalczyk.info over the past 3 months.

Kowalczyk.info Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 14061

ASN Title: DIGITALOCEAN-ASN - DigitalOcean, LLC, US

Last Update: 10/15/2020

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

ASNumber: 14061
ASName: DIGITALOCEAN-ASN
ASHandle: AS14061
RegDate: 2012-09-25
Updated: 2012-09-25
Ref: https://rdap.arin.net/registry/autnum/14061

OrgName: DigitalOcean, LLC
OrgId: DO-13
Address: 101 Ave of the Americas
Address: 10th Floor
City: New York
StateProv: NY
PostalCode: 10013
Country: US
RegDate: 2012-05-14
Updated: 2018-07-17
Comment: http://www.digitalocean.com
Comment: Simple Cloud Hosting
Ref: https://rdap.arin.net/registry/entity/DO-13

OrgAbuseHandle: ABUSE5232-ARIN
OrgAbuseName: Abuse, DigitalOcean
OrgAbusePhone: +1-347-875-6044
OrgAbuseEmail: abuse@digitalocean.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE5232-ARIN

OrgNOCHandle: NOC32014-ARIN
OrgNOCName: Network Operations Center
OrgNOCPhone: +1-347-875-6044
OrgNOCEmail: noc@digitalocean.com
OrgNOCRef: https://rdap.arin.net/registry/entity/NOC32014-ARIN

OrgTechHandle: NOC32014-ARIN
OrgTechName: Network Operations Center
OrgTechPhone: +1-347-875-6044
OrgTechEmail: noc@digitalocean.com
OrgTechRef: https://rdap.arin.net/registry/entity/NOC32014-ARIN

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

Kowalczyk.info Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: kowalczyk.info
Registry Domain ID: af80d9f987934cdbac31469452fcfa00-DONUTS
Registrar WHOIS Server: http://whois.cloudflare.com
Registrar URL: http://cloudflare.com
Updated Date: 2023-12-20T16:16:27Z
Creation Date: 2002-08-17T09:16:38Z
Registry Expiry Date: 2025-08-17T09:16:38Z
Registrar: Cloudflare, Inc
Registrar IANA ID: 1910
Registrar Abuse Contact Email:
Registrar Abuse Contact Phone:
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: REDACTED FOR PRIVACY
Registrant Name: REDACTED FOR PRIVACY
Registrant Organization:
Registrant Street: REDACTED FOR PRIVACY
Registrant City: REDACTED FOR PRIVACY
Registrant State/Province: FL
Registrant Postal Code: REDACTED FOR PRIVACY
Registrant Country: US
Registrant Phone: REDACTED FOR PRIVACY
Registrant Phone Ext: REDACTED FOR PRIVACY
Registrant Fax: REDACTED FOR PRIVACY
Registrant Fax Ext: REDACTED FOR PRIVACY
Registrant Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Admin ID: REDACTED FOR PRIVACY
Admin Name: REDACTED FOR PRIVACY
Admin Organization: REDACTED FOR PRIVACY
Admin Street: REDACTED FOR PRIVACY
Admin City: REDACTED FOR PRIVACY
Admin State/Province: REDACTED FOR PRIVACY
Admin Postal Code: REDACTED FOR PRIVACY
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Admin Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Registry Tech ID: REDACTED FOR PRIVACY
Tech Name: REDACTED FOR PRIVACY
Tech Organization: REDACTED FOR PRIVACY
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Tech Fax Ext: REDACTED FOR PRIVACY
Tech Email: Please query the RDDS service of the Registrar of Record identified in this output for information on how to contact the Registrant, Admin, or Tech contact of the queried domain name.
Name Server: gail.ns.cloudflare.com
Name Server: terry.ns.cloudflare.com
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of WHOIS database: 2024-09-26T04:52:06Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
kowalczyk.info	104.248.78.23	20

Host	MX Record	Priority	TTL

Host	NS Record	TTL
kowalczyk.info	dns1.p06.nsone.net	3600
kowalczyk.info	dns2.p06.nsone.net	3600
kowalczyk.info	dns3.p06.nsone.net	3600
kowalczyk.info	dns4.p06.nsone.net	3600

Host	TXT Record	TTL

dns1.p06.nsone.net
TTL: 3600
Email address: hostmaster.nsone.net
Serial: 1561381553
Refresh: 43200
Retry: 7200
Expire: 1209600
Minimum: 3600

Kowalczyk.info HTML Check

HTML Validation Tool

NON-DOCUMENT-ERROR

HTTP resource not retrievable. The HTTP status from the remote server was: 404.

Kowalczyk.info Desktop Performance

Last tested: 11/10/2018

Desktop Speed

100%

Desktop Resource Breakdown

Total Resources	1
Number of Hosts	1

Kowalczyk.info Mobile Insights

Last tested: 11/10/2018

Mobile Usability

67%

Use legible font sizes

Configure the viewport

Mobile Speed

100%

Mobile Resource Breakdown

Total Resources	1
Number of Hosts	1

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Kowalczyk.info Krzysztof Kowalczyk

Personal page of Krzysztof Kowalczyk. Programmer, creator of SumatraPDF.

Kowalczyk.info Overview

Kowalczyk.info Rank Summary

Kowalczyk.info Website Safety

Kowalczyk.info Rank History

Kowalczyk.info Hosting Information

Kowalczyk.info Domain Registration and Settings

Kowalczyk.info HTML Check

Kowalczyk.info Desktop Performance

Kowalczyk.info Mobile Insights

Kowalczyk.info Similar Audits

Kowalczyk.info Common Typos