zero-day.cz Zero-day.cz

   
Free zero-day vulnerability tracking service - zero-day.cz

Domain Summary

What percent of global Internet users visit Zero-day.cz?

• 3.6E-6% of global Internet users visit Zero-day.cz

How many people visit Zero-day.cz each day?

• Zero-day.cz receives approximately 175 visitors and 322 page impressions per day.

Which countries does Zero-day.cz receive most of its visitors from?

• Zero-day.cz is mostly visited by people located in United States,India,France.

How much Zero-day.cz can earn?

• Zero-day.cz should earn about $0.79/day from advertising revenue.

What is Zero-day.cz estimated value?

• Estimated value of Zero-day.cz is $767.92.

What IP addresses does Zero-day.cz resolve to?

• Zero-day.cz resolves to the IP addresses 51.159.77.238.

Where are Zero-day.cz servers located in?

• Zero-day.cz has servers located in Paris, Paris, 75001, France.

zero-day.cz Profile

Title:Free zero-day vulnerability tracking service - zero-day.cz Description:Free zero-day (0day) vulnerability tracking project.
Tags:
it security
penetration testing
vulnerability
exploit
intelligence services
Edit Site Info

What technologies does zero-day.cz use?

These are the technologies used at zero-day.cz. zero-day.cz has a total of 6 technologies installed in 8 different categories.
CMS
1C-Bitrix 1C-Bitrix
Ecommerce
1C-Bitrix 1C-Bitrix
UI frameworks
Bootstrap Bootstrap
Security
HSTS HSTS
JavaScript Libraries
jQuery jQuery
Web Servers
Nginx Nginx
Reverse proxies
Nginx Nginx
Programming Languages
PHP PHP

zero-day.cz Traffic Analysis

This website is viewed by an estimated 175 visitors daily, generating a total of 322 pageviews. This equates to about 5.3K monthly visitors. Zero-day.cz traffic has decreased by 45.04% compared to last month.
Daily Visitors175
47.64%
Monthly Visits5.3K
45.04%
Pages per Visit1.83
44.83%
Visit duration00:15
63.76%
Bounce Rate40.79%
6.4%
Is this your site?Verify your site's metrics.
Daily Unique Visitors:
175
Monthly Visits:
5,303
Pages per Visit:
1.83
Daily Pageviews:
322
Avg. visit duration:
00:15
Bounce rate:
40.79%
Global Reach:
3.6E-6%
Monthly Visits (SEMrush):
3,795
Monthly Unique Visitors (SEMrush):
2,987
Monthly Visits (SimilarWeb):
5,315
HypeRank:
n/a
SEMrush Rank:
1,723,467
SimilarWeb Rank:
3,176,436
*All traffic values are estimates only.

Traffic sources

Direct:
34.15%
Referral:
3.32%
Search:
59.18%
Social:
3.35%
Paid:
0%

Desktop vs Mobile

Desktop:
82.40%
Mobile:
17.60%

Total Visits Last 3 Months

6.9K
APR
9.6K
MAY
5.3K
JUN

Visitors by country

Country
Users%
 
United States 26.22%
 
India 22.42%
 
France 16.41%
 
Brazil 10.89%
 
United Kingdom 7.50%
Last update was 3 days ago
     
This can take up to 60 seconds. Please wait...

*HypeStat.com is not promoting or affiliated with zero-day.cz in any way. Only publicly available statistics data are displayed.

Search Engine Indexes ▼

Search engine indexes are huge databases or collections of net pages that search engines like google like google and yahoo use to retrieve applicable facts while customers carry out searches. These indexes are created through search engines like google and yahoo through crawling and indexing net pages from throughout the internet.
Bing Index:
54,500

  ▼

SEMrush is a complete on line advertising and marketing platform that gives a extensive variety of gear and functions to help companies and entrepreneurs in enhancing their on line visibility and optimizing their virtual advertising and marketing strategies.
SemRushSemRush
Domain:
  zero-day.cz
Rank:
(Rank based on keywords, cost and organic traffic)
  1,723,467
Organic Keywords:
(Number of keywords in top 20 Google SERP)
  372
Organic Traffic:
(Number of visitors coming from top 20 search results)
  444
Organic Cost:
((How much need to spend if get same number of visitors from Google Adwords)
  $1,134.00
Full SEMrush Report >>

Revenue report ▼

Google.com would generate approximately $0.8 per day if the source of income were advertisements, which equates to an estimated monthly revenue of $23.7 and annual gross revenue of approximately $288.4. Based on these figures, the site's net worth is estimated at around $767.9.

How much would zero-day.cz make?

Daily Revenue:
$0.79
Monthly Revenue:
$23.70
Yearly Revenue:
$288.35
*All earnings values are estimates only.

Daily earning by country

 
CountryPageviewsEarning
 
United States 84$0.41
 
United Kingdom 24$0.06
 
Brazil 35$0.05
 
France 53$0.03
 
India 72$0.03

Loss of money due to Adblock?

Daily Revenue Loss:
$0.10
Monthly Revenue Loss:
$2.93
Yearly Revenue Loss:
$35.63
Daily Pageviews Blocked:
47
Monthly Pageviews Blocked:
1,416
Yearly Pageviews Blocked:
17,225

Daily revenue loss by country

 
CountryBlockedLost Money
 
United States 15$0.07
 
United Kingdom 4$0.01
 
India 20$0.01
 
France 6$0.00
 
Brazil 2$0.00

How much is zero-day.cz worth?

Website Value:
$767.9

Ad Experience Report ▼

Summary of the ad experience rating of a website for a specific platform.

Mobile summary

Root domain:
zero-day.cz
Ad filtering:
(Chrome is not filtering ads on your site.)
Off
Status:
(The status of the site that is reviewed for the Better Ads Standards.)
Not reviewed

Desktop summary

Root domain:
zero-day.cz
Ad filtering:
(Chrome is not filtering ads on your site.)
Off
Status:
(The status of the site that is reviewed for the Better Ads Standards.)
Not reviewed

Abusive Experience Report ▼

Summary of the abusive experience rating of a website.
Root domain:
zero-day.cz
Enforcement:
(Chrome is not preventing your site from opening new windows or tabs.)
Off
Status:
(The status of the site reviewed for the abusive experiences.)
Not reviewed

Where is zero-day.cz hosted? ▼

Zero-day.cz may be hosted in multiple data centers distributed in different locations around the world. This is probably just one of them.
Server IP:
51.159.77.238
ASN:
AS12876 
ISP:
Online S.a.s. 
Server Location:
Paris
Paris, 75
75001
France, FR
 

Other sites hosted on 51.159.77.238

There are no other sites hosted on this IP

How fast does zero-day.cz load? ▼

The average loading time of zero-day.cz is 367 ms. The Desktop speed index is 95 and mobile speed index is 63.
Average Load Time:
367 ms

Page Speed (Google PageSpeed Insights) - Desktop

95
0-49 50-89 90-100 i

Field Data

Over the last 30 days, the field data shows that this page has a AVERAGE speed compared to other pages in the Chrome User Experience Report.We are showing the 90th percentile of FCP and the 95th percentile of FID.

Cumulative Layout Shift (CLS)0ms 100% of loads for this page have a fast (<0.01s) Cumulative Layout Shift (CLS) 100% 0% of loads for this page have an average (0.01s ~ 0.025s) Cumulative Layout Shift (CLS) 0% 0% of loads for this page have a slow (>0.025s) Cumulative Layout Shift (CLS) 0%
Time To First Byte (TTFB)1.2s 58% of loads for this page have a fast (<0.8s) Time To First Byte (TTFB) 58% 30% of loads for this page have an average (0.8s ~ 1.8s) Time To First Byte (TTFB) 30% 10% of loads for this page have a slow (>1.8s) Time To First Byte (TTFB) 10%
First Contentful Paint (FCP)2.5s 59% of loads for this page have a fast (<1.8s) First Contentful Paint (FCP) 59% 23% of loads for this page have an average (1.8s ~ 3s) First Contentful Paint (FCP) 23% 17% of loads for this page have a slow (>3s) First Contentful Paint (FCP) 17%
First Input Delay (FID)0 0% of loads for this page have a fast (<0ms) First Input Delay (FID) 0% 0% of loads for this page have an average (0ms ~ 0ms) First Input Delay (FID) 0% 0% of loads for this page have a slow (>0ms) First Input Delay (FID) 0%
Interaction To Next Paint (INP)0 0% of loads for this page have a fast (<0ms) Interaction To Next Paint (INP) 0% 0% of loads for this page have an average (0ms ~ 0ms) Interaction To Next Paint (INP) 0% 0% of loads for this page have a slow (>0ms) Interaction To Next Paint (INP) 0%
Largest Contentful Paint (LCP)2.6s 73% of loads for this page have a fast (<2500ms) Largest Contentful Paint (LCP) 73% 14% of loads for this page have an average (2500ms ~ 4000ms) Largest Contentful Paint (LCP) 14% 11% of loads for this page have a slow (>4000ms) Largest Contentful Paint (LCP) 11%

Origin Data

All pages served from this origin have an SLOW speed compared to other pages in the Chrome User Experience Report. over the last 30 days.To view suggestions tailored to each page, analyze individual page URLs.

Cumulative Layout Shift (CLS)0ms 98% of loads for this page have a fast (<0.01s) Cumulative Layout Shift (CLS) 98% 0% of loads for this page have an average (0.01s ~ 0.025s) Cumulative Layout Shift (CLS) 0% 1% of loads for this page have a slow (>0.025s) Cumulative Layout Shift (CLS) 1%
Time To First Byte (TTFB)2.3s 56% of loads for this page have a fast (<0.8s) Time To First Byte (TTFB) 56% 11% of loads for this page have an average (0.8s ~ 1.8s) Time To First Byte (TTFB) 11% 31% of loads for this page have a slow (>1.8s) Time To First Byte (TTFB) 31%
First Contentful Paint (FCP)2.9s 58% of loads for this page have a fast (<1.8s) First Contentful Paint (FCP) 58% 18% of loads for this page have an average (1.8s ~ 3s) First Contentful Paint (FCP) 18% 23% of loads for this page have a slow (>3s) First Contentful Paint (FCP) 23%
First Input Delay (FID)0 0% of loads for this page have a fast (<0ms) First Input Delay (FID) 0% 0% of loads for this page have an average 0ms ~ 0ms) First Input Delay (FID) 0% 0% of loads for this page have a slow (>0ms) First Input Delay (FID) 0%
Interaction To Next Paint (INP)37ms 94% of loads for this page have a fast (<200ms) Interaction To Next Paint (INP) 94% 3% of loads for this page have an average (200ms ~ 500ms) Interaction To Next Paint (INP) 3% 2% of loads for this page have a slow (>500ms) Interaction To Next Paint (INP) 2%
Largest Contentful Paint (LCP)2.8s 68% of loads for this page have a fast (<2500ms) Largest Contentful Paint (LCP) 68% 17% of loads for this page have an average (2500ms ~ 4000ms) Largest Contentful Paint (LCP) 17% 13% of loads for this page have a slow (>4000ms) Largest Contentful Paint (LCP) 13%

Lab Data

Largest Contentful Paint 1.2 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more about the Largest Contentful Paint metric
Speed Index 1.1 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more about the Speed Index metric
First Contentful Paint 1.1 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more about the First Contentful Paint metric
INP breakdown  
Start investigating with the longest subpart. To reduce processing duration, , often JS. Delays can be minimized optimize the main-thread costs
Time to Interactive 1.3 s
Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric
Lazy load third-party resources with facades  
Some third-party embeds can be lazy loaded. Consider replacing them with a facade until they are required. Learn how to defer third-parties with a facade
Max Potential First Input Delay 90 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric
Total Blocking Time 30 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more about the Total Blocking Time metric
First Meaningful Paint  
First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful Paint metric

Page Speed (Google PageSpeed Insights) - Mobile

63
0-49 50-89 90-100 i

Field Data

Over the last 30 days, the field data shows that this page has a SLOW speed compared to other pages in the Chrome User Experience Report.We are showing the 90th percentile of FCP and the 95th percentile of FID.

Cumulative Layout Shift (CLS)0ms 100% of loads for this page have a fast (<0.01s) Cumulative Layout Shift (CLS) 100% 0% of loads for this page have an average (0.01s ~ 0.025s) Cumulative Layout Shift (CLS) 0% 0% of loads for this page have a slow (>0.025s) Cumulative Layout Shift (CLS) 0%
Time To First Byte (TTFB)1.4s 58% of loads for this page have a fast (<800s) Time To First Byte (TTFB) 47% 37% of loads for this page have an average (800s ~ 1800s) Time To First Byte (TTFB) 37% 14% of loads for this page have a slow (>1800s) Time To First Byte (TTFB) 14%
First Contentful Paint (FCP)3.1s 59% of loads for this page have a fast (<1.8s) First Contentful Paint (FCP) 50% 23% of loads for this page have an average (1.8s ~ 3s) First Contentful Paint (FCP) 23% 26% of loads for this page have a slow (>3s) First Contentful Paint (FCP) 26%
First Input Delay (FID)0 0% of loads for this page have a fast (<0ms) First Input Delay (FID) 0% 0% of loads for this page have an average (0ms ~ 0ms) First Input Delay (FID) 0% 0% of loads for this page have a slow (>0ms) First Input Delay (FID) 0%
Interactive To Next Paint (INP)0 0% of loads for this page have a fast (<0s) Interactive To Next Paint (INP) 0% 0% of loads for this page have an average (0s ~ 0s) Interactive To Next Paint (INP) 0% 0% of loads for this page have a slow (>0s) Interactive To Next Paint (INP) 0%
Largest Contentful Paint (LCP)3.2s 73% of loads for this page have a fast (<2500s) Largest Contentful Paint (LCP) 62% 19% of loads for this page have an average (2500s ~ 4000s) Largest Contentful Paint (LCP) 19% 18% of loads for this page have a slow (>4000s) Largest Contentful Paint (LCP) 18%

Origin Data

All pages served from this origin have an SLOW speed compared to other pages in the Chrome User Experience Report. over the last 30 days.To view suggestions tailored to each page, analyze individual page URLs.

Cumulative Layout Shift (CLS)0ms 99% of loads for this page have a fast (<0.01s) Cumulative Layout Shift (CLS) 99% 0% of loads for this page have an average (0.01s ~ 0.025s) Cumulative Layout Shift (CLS) 0% 0% of loads for this page have a slow (>0.025s) Cumulative Layout Shift (CLS) 0%
Time To First Byte (TTFB)2.2s 54% of loads for this page have a fast (<0.8s) Time To First Byte (TTFB) 54% 17% of loads for this page have an average (0.8s ~ 1.8s) Time To First Byte (TTFB) 17% 28% of loads for this page have a slow (>1.8s) Time To First Byte (TTFB) 28%
First Contentful Paint (FCP)3.0s 56% of loads for this page have a fast (<1.8s) First Contentful Paint (FCP) 56% 18% of loads for this page have an average (1.8s ~ 3s) First Contentful Paint (FCP) 18% 24% of loads for this page have a slow (>3s) First Contentful Paint (FCP) 24%
First Input Delay (FID)0 0% of loads for this page have a fast (<0ms) First Input Delay (FID) 0% 0% of loads for this page have an average 0ms ~ 0ms) First Input Delay (FID) 0% 0% of loads for this page have a slow (>0ms) First Input Delay (FID) 0%
Interactive To Next Paint (INP)202ms 74% of loads for this page have a fast (<0.2s) Interactive To Next Paint (INP) 74% 13% of loads for this page have an average (0.2s ~ 0.5s) Interactive To Next Paint (INP) 13% 12% of loads for this page have a slow (>0.5s) Interactive To Next Paint (INP) 12%
Largest Contentful Paint (LCP)2.9s 66% of loads for this page have a fast (<2.5s)Largest Contentful Paint (LCP) 66% 18% of loads for this page have an average (2.5s ~ 4s)Largest Contentful Paint (LCP) 18% 15% of loads for this page have a slow (>4s)Largest Contentful Paint (LCP) 15%

Lab Data

Speed Index 5.9 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more about the Speed Index metric
Lazy load third-party resources with facades  
Some third-party embeds can be lazy loaded. Consider replacing them with a facade until they are required. Learn how to defer third-parties with a facade
Total Blocking Time 30 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more about the Total Blocking Time metric
First Contentful Paint 4.9 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more about the First Contentful Paint metric
Time to Interactive 6.8 s
Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric
INP breakdown  
Start investigating with the longest subpart. To reduce processing duration, , often JS. Delays can be minimized optimize the main-thread costs
Largest Contentful Paint 6.8 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more about the Largest Contentful Paint metric
Max Potential First Input Delay 80 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric
First Meaningful Paint  
First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful Paint metric

Does zero-day.cz use compression? ▼

Website compression is the process of reducing the size of website files, such as HTML, CSS, JavaScript, and image files, to improve website performance and load times. Compressing website files can significantly reduce the amount of data that needs to be transferred from the server to the user's browser, resulting in faster page load times and improved user experience. Files on zero-day.cz are reduced by 67%.
zero-day.cz use gzip compression.
Original size: 11.55 KB
Compressed size: 3.76 KB
File reduced by: 7.79 KB (67%)

Google Safe Browsing ▼

Google Safe Browsing is a service provided by Google that helps protect users from visiting websites that may contain malicious or harmful content, such as malware, phishing attempts, or deceptive software.
This site is not currently listed as suspicious

MyWot.com Reputation Ratings

MyWOT (short for "My Web of Trust") is a web-based reputation and rating service that provides users with information about the trustworthiness and safety of websites.
Status:
  SAFE

SSL Checker - SSL Certificate Verify ▼

An SSL (Secure Sockets Layer) certificate is a digital certificate that establishes a secure encrypted connection between a web server and a user's web browser. It provides authentication and encryption, ensuring that data transmitted between the server and the browser remains private and protected. zero-day.cz supports HTTPS.
 zero-day.cz supports HTTPS
     
Verifying SSL Support. Please wait...
Common Name: zero-day.cz
Organization:
Location:
Issuer: R10
Valid from: May 28 02:27:21 2025 GMT
Valid until: Aug 26 02:27:20 2025 GMT
Authority: CA:FALSE
Keysize: 4096 Bits
Common Name: R10
Organization: Let's Encrypt
Location: US
Issuer: ISRG Root X1
Valid from: Mar 13 00:00:00 2024 GMT
Valid until: Mar 12 23:59:59 2027 GMT
Authority: CA:TRUE
Keysize: 2048 Bits

Verify HTTP/2 Support ▼

HTTP/2 (Hypertext Transfer Protocol version 2) is a major revision of the HTTP protocol, which is the foundation of data communication on the World Wide Web. It was developed as an improvement over the previous HTTP/1.1 version to enhance web performance and efficiency.
 zero-day.cz supports HTTP/2
     
Verifying HTTP/2.0 Support. Please wait...

Http Header ▼

HTTP headers are extra portions of records despatched among a consumer (which include an internet browser) and a server at some stage in an HTTP request or response. They offer instructions, metadata, or manipulate parameters for the conversation among the consumer and server. 
server: nginx
date: Fri, 11 Jul 2025 10:03:02 GMT
content-type: text/html
content-length: 162
location: https://www.zero-day.cz/
strict-transport-security: max-age=31536000; includeSubDomains; preload
x-xss-protection: 1; mode=block
x-frame-options: SAMEORIGIN
x-content-type-options: nosniff
referrer-policy: strict-origin
permissions-policy: geolocation=(),midi=(),sync-xhr=(),microphone=(),camera=(),magnetometer=(),gyroscope=(),fullscreen=(self),payment=()

HTTP/2 200 
server: nginx
date: Fri, 11 Jul 2025 10:03:02 GMT
content-type: text/html; charset=UTF-8
p3p: policyref="/bitrix/p3p.xml", CP="NON DSP COR CUR ADM DEV PSA PSD OUR UNR BUS UNI COM NAV INT DEM STA"
x-powered-cms: Bitrix Site Manager (17ef472fff18f528f047ac97f79a2223)
set-cookie: PHPSESSID=86jwp6Q5rQecxvLB8Dz1sANGVr2mSaAI; path=/; domain=zero-day.cz; HttpOnly
expires: Thu, 19 Nov 1981 08:52:00 GMT
cache-control: no-store, no-cache, must-revalidate
pragma: no-cache
strict-transport-security: max-age=31536000; includeSubDomains; preload
x-xss-protection: 1; mode=block
x-frame-options: SAMEORIGIN
x-content-type-options: nosniff
referrer-policy: strict-origin
permissions-policy: geolocation=(),midi=(),sync-xhr=(),microphone=(),camera=(),magnetometer=(),gyroscope=(),fullscreen=(self),payment=()
content-encoding: gzip

DNS Lookup ▼

DNS entries (Domain Name System) are a critical component of the Internet infrastructure. They act as directories that translate human-readable domain names (such as example.com) to machine-readable IP addresses. DNS records are stored on DNS servers and help forward internet traffic efficiently.
Type Ip Target/Txt TTL
MX mail.s-help.com 3600
SOA 3600
Mname pid1.srv53.net
Rname support.dnshosting.org
Serial Number 1708078289
Refresh 1800
Retry 600
Expire 2419200
Minimum TTL 1800
NS pid2.srv53.org 3600
NS pid1.srv53.net 3600
A 51.159.77.238 3600

Whois Lookup ▼

Domain WHOIS is a public database that provides information about domain names, including registered owners, contact information, domain registrars, registration and expiration dates, name servers, and other relevant information. Domain registration for this website began on February 15, 2017 and will expire on February 15, 2026 if not renewed. This website is now assigned through the registrar REG-ZONER. The WHOIS data for this website's domain was last updated on July 14, 2025.
Domain Created:
2017-02-15
Domain Expires:
2026-02-15
Domain Age:
8 years 4 months 27 days
Domain Registrar:
REG-ZONER
Domain Owner:
IMENA.UA
WhoIs:
 

%  (c) 2006-2021 CZ.NIC, z.s.p.o.
% 
% Intended use of supplied data and information
% 
% Data contained in the domain name register, as well as information
% supplied through public information services of CZ.NIC association,
% are appointed only for purposes connected with Internet network
% administration and operation, or for the purpose of legal or other
% similar proceedings, in process as regards a matter connected
% particularly with holding and using a concrete domain name.
% 
% Full text available at:
% http://www.nic.cz/page/306/intended-use-of-supplied-data-and-information/
% 
% See also a search service at http://www.nic.cz/whois/
% 
% 
% Whoisd Server Version: 3.15.0
% Timestamp: Fri Jul 11 12:03:39 2025

domain:       zero-day.cz
registrant:   ZONER-20121126958
nsset:        DNS53
registrar:    REG-ZONER
registered:   15.02.2017 10:19:54
expire:       15.02.2026

contact:      ZONER-20121126958
org:          IMENA.UA
name:         Vyacheslav Krukovskiy
address:      Gaidara st., 50
address:      KYIV
address:      01033
address:      UA
e-mail:       email
registrar:    REG-ZONER
created:      26.11.2012 09:58:04
changed:      04.08.2020 10:47:39

nsset:        DNS53
nserver:      pid1.srv53.net 
nserver:      pid2.srv53.org 
tech-c:       IMENA.UA
registrar:    REG-ZONER
created:      27.01.2015 13:37:04

contact:      IMENA.UA
org:          IMENA.UA
name:         Imena.ua Hostmaster
address:      111/113 Velyka Vasylkivska
address:      Kyiv
address:      03150
address:      UA
registrar:    REG-ZONER
created:      26.12.2007 18:21:09
changed:      15.05.2018 21:32:00