cocabi.com Cocabi.com

   
Jet Set Party

Domain Summary

What is the traffic rank for Cocabi.com?

• Cocabi.com ranks #548,750 globally on HypeStat.

What percent of global Internet users visit Cocabi.com?

• 1.81E-5% of global Internet users visit Cocabi.com

How many people visit Cocabi.com each day?

• Cocabi.com receives approximately 890 visitors and 21,092 page impressions per day.

Which countries does Cocabi.com receive most of its visitors from?

• Cocabi.com is mostly visited by people located in France.

How much Cocabi.com can earn?

• Cocabi.com should earn about $12.23/day from advertising revenue.

What is Cocabi.com estimated value?

• Estimated value of Cocabi.com is $15,555.62.

What IP addresses does Cocabi.com resolve to?

• Cocabi.com resolves to the IP addresses 94.23.28.121.

Where are Cocabi.com servers located in?

• Cocabi.com has servers located in France.

cocabi.com Profile

Title:Jet Set Party
Category:Food and Drink / Cooking and Recipes
Edit Site Info

What technologies does cocabi.com use?

These are the technologies used at cocabi.com. cocabi.com has a total of 4 technologies installed in 5 different categories.
Analytics
Google Analytics Google Analytics
CDN
jsDelivr jsDelivr
Web Servers
Nginx Nginx
Reverse proxies
Nginx Nginx
Programming Languages
PHP PHP

cocabi.com Traffic Analysis

Cocabi.com is ranked #548,750 in the world. This website is viewed by an estimated 890 visitors daily, generating a total of 21.1K pageviews. This equates to about 27K monthly visitors. Cocabi.com traffic has increased by 3280.98% compared to last month.
Daily Visitors890
1575%
Monthly Visits27K
3280.98%
Pages per Visit23.69
61.65%
Visit duration14:19
59.34%
Bounce Rate1.35%
Is this your site?Verify your site's metrics.
Daily Unique Visitors:
890
Monthly Visits:
26,967
Pages per Visit:
23.69
Daily Pageviews:
21,092
Avg. visit duration:
14:19
Bounce rate:
1.35%
Global Reach:
1.81E-5%
Monthly Visits (SEMrush):
50,309
Monthly Unique Visitors (SEMrush):
603
Monthly Visits (SimilarWeb):
26,440
HypeRank:
548,750
SimilarWeb Rank:
548,750
*All traffic values are estimates only.

Traffic sources

Direct:
41.74%
Referral:
0%
Search:
0%
Social:
58.26%
Paid:
0%

Desktop vs Mobile

Desktop:
100.00%
Mobile:
0%

Total Visits Last 3 Months

38.3K
DEC
797.6
JAN
27K
FEB

Visitors by country

Country
Users%
 
France 100.00%

Which sites are competitors to cocabi.com?

Websites similar to cocabi.com are sites similar on user interests and browsing behavior. Users can discover new websites that are similar to the ones they already enjoy or find useful.
Last update was 88 days ago
     
This can take up to 60 seconds. Please wait...

*HypeStat.com is not promoting or affiliated with cocabi.com 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.
Google Index:
4

  ▼

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:
  cocabi.com
Rank:
(Rank based on keywords, cost and organic traffic)
  n/a
Organic Keywords:
(Number of keywords in top 20 Google SERP)
  0
Organic Traffic:
(Number of visitors coming from top 20 search results)
  0
Organic Cost:
((How much need to spend if get same number of visitors from Google Adwords)
  $0.00
Full SEMrush Report >>

Revenue report ▼

Google.com would generate approximately $12.2 per day if the source of income were advertisements, which equates to an estimated monthly revenue of $366.9 and annual gross revenue of approximately $4.5K. Based on these figures, the site's net worth is estimated at around $15.6K.

How much would cocabi.com make?

Daily Revenue:
$12.23
Monthly Revenue:
$366.90
Yearly Revenue:
$4,463.95
*All earnings values are estimates only.

Daily earning by country

 
CountryPageviewsEarning
 
France 21,092$12.23

Loss of money due to Adblock?

Daily Revenue Loss:
$1.35
Monthly Revenue Loss:
$40.37
Yearly Revenue Loss:
$491.17
Daily Pageviews Blocked:
2,320
Monthly Pageviews Blocked:
69,604
Yearly Pageviews Blocked:
846,844

Daily revenue loss by country

 
CountryBlockedLost Money
 
France 2,320$1.35

How much is cocabi.com worth?

Website Value:
$15.6K

Ad Experience Report ▼

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

Mobile summary

Root domain:
cocabi.com
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:
cocabi.com
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:
cocabi.com
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 cocabi.com hosted? ▼

Cocabi.com may be hosted in multiple data centers distributed in different locations around the world. This is probably just one of them.
Server IP:
94.23.28.121
ASN:
AS16276 
ISP:
OVH SAS 
Server Location:

France, FR
 

Other sites hosted on 94.23.28.121

There are no other sites hosted on this IP

How fast does cocabi.com load? ▼

The average loading time of cocabi.com is 972 ms. The Desktop speed index is 91 and mobile speed index is 68.
Average Load Time:
972 ms

Page Speed (Google PageSpeed Insights) - Desktop

91
0-49 50-89 90-100 i

Field Data

Over the last 30 days, the field data shows that this page has a FAST 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)3ms 97% of loads for this page have a fast (<0.01s) Cumulative Layout Shift (CLS) 97% 2% of loads for this page have an average (0.01s ~ 0.025s) Cumulative Layout Shift (CLS) 2% 0% of loads for this page have a slow (>0.025s) Cumulative Layout Shift (CLS) 0%
Time To First Byte (TTFB)188ms 98% of loads for this page have a fast (<0.8s) Time To First Byte (TTFB) 98% 0% of loads for this page have an average (0.8s ~ 1.8s) Time To First Byte (TTFB) 0% 0% of loads for this page have a slow (>1.8s) Time To First Byte (TTFB) 0%
First Contentful Paint (FCP)472ms 98% of loads for this page have a fast (<1.8s) First Contentful Paint (FCP) 98% 1% of loads for this page have an average (1.8s ~ 3s) First Contentful Paint (FCP) 1% 0% of loads for this page have a slow (>3s) First Contentful Paint (FCP) 0%
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)58ms 98% of loads for this page have a fast (<200ms) Interaction To Next Paint (INP) 98% 1% of loads for this page have an average (200ms ~ 500ms) Interaction To Next Paint (INP) 1% 0% of loads for this page have a slow (>500ms) Interaction To Next Paint (INP) 0%
Largest Contentful Paint (LCP)563ms 98% of loads for this page have a fast (<2500ms) Largest Contentful Paint (LCP) 98% 0% of loads for this page have an average (2500ms ~ 4000ms) Largest Contentful Paint (LCP) 0% 0% of loads for this page have a slow (>4000ms) Largest Contentful Paint (LCP) 0%

Origin Data

All pages served from this origin have an FAST 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)3ms 97% of loads for this page have a fast (<0.01s) Cumulative Layout Shift (CLS) 97% 2% of loads for this page have an average (0.01s ~ 0.025s) Cumulative Layout Shift (CLS) 2% 0% of loads for this page have a slow (>0.025s) Cumulative Layout Shift (CLS) 0%
Time To First Byte (TTFB)169ms 98% of loads for this page have a fast (<0.8s) Time To First Byte (TTFB) 98% 0% of loads for this page have an average (0.8s ~ 1.8s) Time To First Byte (TTFB) 0% 0% of loads for this page have a slow (>1.8s) Time To First Byte (TTFB) 0%
First Contentful Paint (FCP)468ms 98% of loads for this page have a fast (<1.8s) First Contentful Paint (FCP) 98% 1% of loads for this page have an average (1.8s ~ 3s) First Contentful Paint (FCP) 1% 0% of loads for this page have a slow (>3s) First Contentful Paint (FCP) 0%
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)57ms 98% of loads for this page have a fast (<200ms) Interaction To Next Paint (INP) 98% 1% of loads for this page have an average (200ms ~ 500ms) Interaction To Next Paint (INP) 1% 0% of loads for this page have a slow (>500ms) Interaction To Next Paint (INP) 0%
Largest Contentful Paint (LCP)531ms 98% of loads for this page have a fast (<2500ms) Largest Contentful Paint (LCP) 98% 0% of loads for this page have an average (2500ms ~ 4000ms) Largest Contentful Paint (LCP) 0% 0% of loads for this page have a slow (>4000ms) Largest Contentful Paint (LCP) 0%

Lab Data

CSS Selector costs  
If Recalculate Style costs remain high, selector optimization can reduce them. with both high elapsed time and high slow-path %. Simpler selectors, fewer selectors, a smaller DOM, and a shallower DOM will all reduce matching costs. Optimize the selectors
First Meaningful Paint  
First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful Paint metric
Largest Contentful Paint 1.3 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more about the Largest Contentful Paint metric
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
INP by phase  
Start investigating with the longest phase. To reduce processing duration, , often JS. Delays can be minimized optimize the main-thread costs
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 60 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
Long critical network tree  
by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load. Avoid chaining critical requests
First Contentful Paint 1.0 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more about the First Contentful Paint metric
Font display  
Consider setting to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with . font-display font metric overrides
Optimize DOM size  
A large DOM can increase the duration of style calculations and layout reflows, impacting page responsiveness. A large DOM will also increase memory usage. Learn how to avoid an excessive DOM size
Forced reflow  
Many APIs, typically reading layout geometry, force the rendering engine to pause script execution in order to calculate the style and layout. Learn more about and its mitigations. forced reflow
Speed Index 2.3 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more about the Speed Index metric
Total Blocking Time 10 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

Page Speed (Google PageSpeed Insights) - Mobile

68
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)2ms 97% of loads for this page have a fast (<0.01s) Cumulative Layout Shift (CLS) 98% 1% of loads for this page have an average (0.01s ~ 0.025s) Cumulative Layout Shift (CLS) 1% 0% of loads for this page have a slow (>0.025s) Cumulative Layout Shift (CLS) 0%
Time To First Byte (TTFB)214ms 98% of loads for this page have a fast (<800s) Time To First Byte (TTFB) 99% 0% of loads for this page have an average (800s ~ 1800s) Time To First Byte (TTFB) 0% 0% of loads for this page have a slow (>1800s) Time To First Byte (TTFB) 0%
First Contentful Paint (FCP)594ms 98% of loads for this page have a fast (<1.8s) First Contentful Paint (FCP) 98% 1% of loads for this page have an average (1.8s ~ 3s) First Contentful Paint (FCP) 1% 0% of loads for this page have a slow (>3s) First Contentful Paint (FCP) 0%
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)310ms 98% of loads for this page have a fast (<200s) Interactive To Next Paint (INP) 11% 88% of loads for this page have an average (200s ~ 500s) Interactive To Next Paint (INP) 88% 0% of loads for this page have a slow (>500s) Interactive To Next Paint (INP) 0%
Largest Contentful Paint (LCP)659ms 98% of loads for this page have a fast (<2500s) Largest Contentful Paint (LCP) 99% 0% of loads for this page have an average (2500s ~ 4000s) Largest Contentful Paint (LCP) 0% 0% of loads for this page have a slow (>4000s) Largest Contentful Paint (LCP) 0%

Origin Data

All pages served from this origin have an AVERAGE 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)2ms 98% of loads for this page have a fast (<0.01s) Cumulative Layout Shift (CLS) 98% 1% of loads for this page have an average (0.01s ~ 0.025s) Cumulative Layout Shift (CLS) 1% 0% of loads for this page have a slow (>0.025s) Cumulative Layout Shift (CLS) 0%
Time To First Byte (TTFB)214ms 99% of loads for this page have a fast (<0.8s) Time To First Byte (TTFB) 99% 0% of loads for this page have an average (0.8s ~ 1.8s) Time To First Byte (TTFB) 0% 0% of loads for this page have a slow (>1.8s) Time To First Byte (TTFB) 0%
First Contentful Paint (FCP)594ms 98% of loads for this page have a fast (<1.8s) First Contentful Paint (FCP) 98% 1% of loads for this page have an average (1.8s ~ 3s) First Contentful Paint (FCP) 1% 0% of loads for this page have a slow (>3s) First Contentful Paint (FCP) 0%
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)310ms 11% of loads for this page have a fast (<0.2s) Interactive To Next Paint (INP) 11% 88% of loads for this page have an average (0.2s ~ 0.5s) Interactive To Next Paint (INP) 88% 0% of loads for this page have a slow (>0.5s) Interactive To Next Paint (INP) 0%
Largest Contentful Paint (LCP)659ms 99% of loads for this page have a fast (<2.5s)Largest Contentful Paint (LCP) 99% 0% of loads for this page have an average (2.5s ~ 4s)Largest Contentful Paint (LCP) 0% 0% of loads for this page have a slow (>4s)Largest Contentful Paint (LCP) 0%

Lab Data

First Meaningful Paint  
First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful Paint metric
CSS Selector costs  
If Recalculate Style costs remain high, selector optimization can reduce them. with both high elapsed time and high slow-path %. Simpler selectors, fewer selectors, a smaller DOM, and a shallower DOM will all reduce matching costs. Optimize the selectors
Max Potential First Input Delay 140 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 Contentful Paint 3.5 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more about the First Contentful Paint metric
Forced reflow  
Many APIs, typically reading layout geometry, force the rendering engine to pause script execution in order to calculate the style and layout. Learn more about and its mitigations. forced reflow
Speed Index 7.0 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more about the Speed Index metric
Optimize DOM size  
A large DOM can increase the duration of style calculations and layout reflows, impacting page responsiveness. A large DOM will also increase memory usage. Learn how to avoid an excessive DOM size
Total Blocking Time 100 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
INP by phase  
Start investigating with the longest phase. To reduce processing duration, , often JS. Delays can be minimized optimize the main-thread costs
Time to Interactive 4.9 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
Largest Contentful Paint 4.9 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more about the Largest Contentful Paint metric
Long critical network tree  
by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load. Avoid chaining critical requests
Font display  
Consider setting to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with . font-display font metric overrides

Does cocabi.com 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 cocabi.com are reduced by 74%.
cocabi.com use gzip compression.
Original size: 7.06 KB
Compressed size: 1.78 KB
File reduced by: 5.28 KB (74%)

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. cocabi.com supports HTTPS.
 cocabi.com supports HTTPS
     
Verifying SSL Support. Please wait...
Common Name: cocabi.com
Organization:
Location:
Issuer: GandiCert
Valid from: Nov 15 00:00:00 2024 GMT
Valid until: Nov 15 23:59:59 2025 GMT
Authority: CA:FALSE
Keysize: 2048 Bits
Common Name: GandiCert
Organization: Gandi SAS
Location: FR
Issuer: DigiCert Global Root G2
Valid from: Apr 17 00:00:00 2024 GMT
Valid until: Apr 16 23:59:59 2034 GMT
Authority: CA:TRUE
Keysize: 4096 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.
 cocabi.com does not support 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: Thu, 27 Mar 2025 13:35:22 GMT
Content-Type: text/html
Content-Length: 162
Connection: keep-alive
Location: https://www.cocabi.com/

HTTP/1.1 302 Found
Server: nginx
Date: Thu, 27 Mar 2025 13:35:23 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
Location: https://www.cocabi.com/jspweb

HTTP/1.1 301 Moved Permanently
Server: nginx
Date: Thu, 27 Mar 2025 13:35:23 GMT
Content-Type: text/html
Content-Length: 162
Location: https://www.cocabi.com/jspweb/
Connection: keep-alive

HTTP/1.1 200 OK
Server: nginx
Date: Thu, 27 Mar 2025 13:35:23 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
Set-Cookie: PHPSESSID=3u95ei9pmfsgrdbf4galtbvor3; path=/
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
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
SOA 10800
Mname ns1.gandi.net
Rname hostmaster.gandi.net
Serial Number 1743033600
Refresh 10800
Retry 3600
Expire 604800
Minimum TTL 10800
TXT brevo-code:d7f2f7e7bcc1d6ed62e296b98a18908f 500
A 94.23.28.121 206
NS ns-97-b.gandi.net 10800
NS ns-119-c.gandi.net 10800
NS ns-37-a.gandi.net 10800

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 August 31, 2007 and will expire on August 31, 2025 if not renewed. This website is now assigned through the registrar Gandi SAS. The WHOIS data for this website's domain was last updated on September 2, 2024.
Domain Created:
2007-08-31
Domain Expires:
2025-08-31
Domain Updated:
2024-09-02
Domain Age:
17 years 9 months 24 days
Domain Registrar:
Gandi SAS
WhoIs:
 

   Domain Name: COCABI.COM
   Registry Domain ID: 1188567016_DOMAIN_COM-VRSN
   Registrar WHOIS Server: whois.gandi.net
   Registrar URL: http://www.gandi.net
   Updated Date: 2024-09-02T12:44:23Z
   Creation Date: 2007-08-31T19:15:45Z
   Registry Expiry Date: 2025-08-31T19:15:45Z
   Registrar: Gandi SAS
   Registrar IANA ID: 81
   Registrar Abuse Contact Email: email
   Registrar Abuse Contact Phone: +33.170377661
   Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
   Name Server: NS-119-C.GANDI.NET
   Name Server: NS-37-A.GANDI.NET
   Name Server: NS-97-B.GANDI.NET
   DNSSEC: unsigned
   URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-03-27T13:35:57Z