thisweekinswingnyc.com Thisweekinswingnyc.com

   
This Week in Swing NYC - LINDY HOP / SWING / BALBOA / BLUES

Domain Summary

What is the traffic rank for Thisweekinswingnyc.com?

• Thisweekinswingnyc.com ranks #1,555,898 globally on HypeStat.

What percent of global Internet users visit Thisweekinswingnyc.com?

• 5.85E-5% of global Internet users visit Thisweekinswingnyc.com

How many people visit Thisweekinswingnyc.com each day?

• Thisweekinswingnyc.com receives approximately 2.9K visitors and 6,574 page impressions per day.

How much Thisweekinswingnyc.com can earn?

• Thisweekinswingnyc.com should earn about $26.82/day from advertising revenue.

What is Thisweekinswingnyc.com estimated value?

• Estimated value of Thisweekinswingnyc.com is $25,316.72.

What IP addresses does Thisweekinswingnyc.com resolve to?

• Thisweekinswingnyc.com resolves to the IP addresses 162.241.219.188.

Where are Thisweekinswingnyc.com servers located in?

• Thisweekinswingnyc.com has servers located in United States.

thisweekinswingnyc.com Profile

Title:This Week in Swing NYC - LINDY HOP / SWING / BALBOA / BLUES
Description:The most inclusive and detailed listing of all NYC Swing Dances and classes and info related to Swing, Lindy Hop, Balboa, Blues and Charleston.
Category:Arts and Entertainment / Performing Arts
Edit Site Info

What technologies does thisweekinswingnyc.com use?

These are the technologies used at thisweekinswingnyc.com. thisweekinswingnyc.com has a total of 13 technologies installed in 14 different categories.
Hosting
Bluehost Bluehost
WordPress plugins
Endurance Page Cache Endurance Page Cache
MonsterInsights MonsterInsights
WP Fastest Cache WP Fastest Cache
Caching
Endurance Page Cache Endurance Page Cache
Analytics
Google Analytics Google Analytics
MonsterInsights MonsterInsights
JavaScript Libraries
jQuery jQuery
jQuery Migrate jQuery Migrate
Web Servers
Nginx Nginx
Reverse proxies
Nginx Nginx
Miscellaneous
Open Graph Open Graph
Security
reCAPTCHA reCAPTCHA
Performance
WP Fastest Cache WP Fastest Cache
CMS
WordPress WordPress
Blogs
WordPress WordPress
Programming Languages
PHP PHP
Databases
MySQL MySQL

thisweekinswingnyc.com Traffic Analysis

Thisweekinswingnyc.com is ranked #1,555,898 in the world. This website is viewed by an estimated 2.9K visitors daily, generating a total of 6.6K pageviews. This equates to about 87.4K monthly visitors. Thisweekinswingnyc.com traffic has decreased by 65.59% compared to last month.
Daily Visitors2.9K
62.21%
Monthly Visits87.4K
65.59%
Pages per Visit2.28
10.43%
Visit duration06:29
73.67%
Bounce Rate44.92%
17.86%
Is this your site?Verify your site's metrics.
Daily Unique Visitors:
2,885
Monthly Visits:
87,416
Pages per Visit:
2.28
Daily Pageviews:
6,574
Avg. visit duration:
06:29
Bounce rate:
44.92%
Global Reach:
5.85E-5%
Monthly Visits (SEMrush):
8,444
Monthly Unique Visitors (SEMrush):
3,619
Monthly Visits (SimilarWeb):
87,416
HypeRank:
1,555,898
SEMrush Rank:
1,060,872
SimilarWeb Rank:
715,738
*All traffic values are estimates only.

Traffic sources

Direct:
71.42%
Referral:
28.58%
Search:
0%
Social:
0%
Paid:
0%

Desktop vs Mobile

Desktop:
100.00%
Mobile:
0%

Total Visits Last 3 Months

121.8K
MAY
254K
JUN
87.4K
JUL
Last update was 446 days ago
     
This can take up to 60 seconds. Please wait...

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

  ▼

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:
  thisweekinswingnyc.com
Rank:
(Rank based on keywords, cost and organic traffic)
  1,060,872
Organic Keywords:
(Number of keywords in top 20 Google SERP)
  669
Organic Traffic:
(Number of visitors coming from top 20 search results)
  802
Organic Cost:
((How much need to spend if get same number of visitors from Google Adwords)
  $1,303.00
Full SEMrush Report >>

Revenue report ▼

Google.com would generate approximately $26.8 per day if the source of income were advertisements, which equates to an estimated monthly revenue of $804.6 and annual gross revenue of approximately $9.8K. Based on these figures, the site's net worth is estimated at around $25.3K.

How much would thisweekinswingnyc.com make?

Daily Revenue:
$26.82
Monthly Revenue:
$804.60
Yearly Revenue:
$9,789.30
*All earnings values are estimates only.

How much is thisweekinswingnyc.com worth?

Website Value:
$25.3K

Ad Experience Report ▼

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

Mobile summary

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

Thisweekinswingnyc.com may be hosted in multiple data centers distributed in different locations around the world. This is probably just one of them.
Server IP:
162.241.219.188
ASN:
AS46606 
ISP:
Unified Layer 
Server Location:

United States, US
 

Other sites hosted on 162.241.219.188

How fast does thisweekinswingnyc.com load? ▼

The average loading time of thisweekinswingnyc.com is 536 ms. The Desktop speed index is 64 and mobile speed index is 50.
Average Load Time:
536 ms

Page Speed (Google PageSpeed Insights) - Desktop

64
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)1ms 94% of loads for this page have a fast (<0.01s) Cumulative Layout Shift (CLS) 94% 2% of loads for this page have an average (0.01s ~ 0.025s) Cumulative Layout Shift (CLS) 2% 3% of loads for this page have a slow (>0.025s) Cumulative Layout Shift (CLS) 3%
Time To First Byte (TTFB)928ms 69% of loads for this page have a fast (<0.8s) Time To First Byte (TTFB) 69% 24% of loads for this page have an average (0.8s ~ 1.8s) Time To First Byte (TTFB) 24% 5% of loads for this page have a slow (>1.8s) Time To First Byte (TTFB) 5%
First Contentful Paint (FCP)1.4s 88% of loads for this page have a fast (<1.8s) First Contentful Paint (FCP) 88% 6% of loads for this page have an average (1.8s ~ 3s) First Contentful Paint (FCP) 6% 4% of loads for this page have a slow (>3s) First Contentful Paint (FCP) 4%
First Input Delay (FID)5ms 100% of loads for this page have a fast (<100ms) First Input Delay (FID) 100% 0% of loads for this page have an average (100ms ~ 300ms) First Input Delay (FID) 0% 0% of loads for this page have a slow (>300ms) First Input Delay (FID) 0%
Interaction To Next Paint (INP)38ms 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)1.5s 92% of loads for this page have a fast (<2500ms) Largest Contentful Paint (LCP) 92% 5% of loads for this page have an average (2500ms ~ 4000ms) Largest Contentful Paint (LCP) 5% 1% of loads for this page have a slow (>4000ms) Largest Contentful Paint (LCP) 1%

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)1ms 94% of loads for this page have a fast (<0.01s) Cumulative Layout Shift (CLS) 94% 3% of loads for this page have an average (0.01s ~ 0.025s) Cumulative Layout Shift (CLS) 3% 2% of loads for this page have a slow (>0.025s) Cumulative Layout Shift (CLS) 2%
Time To First Byte (TTFB)951ms 69% of loads for this page have a fast (<0.8s) Time To First Byte (TTFB) 69% 23% of loads for this page have an average (0.8s ~ 1.8s) Time To First Byte (TTFB) 23% 6% of loads for this page have a slow (>1.8s) Time To First Byte (TTFB) 6%
First Contentful Paint (FCP)1.4s 86% of loads for this page have a fast (<1.8s) First Contentful Paint (FCP) 86% 7% of loads for this page have an average (1.8s ~ 3s) First Contentful Paint (FCP) 7% 5% of loads for this page have a slow (>3s) First Contentful Paint (FCP) 5%
First Input Delay (FID)5ms 100% of loads for this page have a fast (<100ms) First Input Delay (FID) 100% 0% of loads for this page have an average 100ms ~ 300ms) First Input Delay (FID) 0% 0% of loads for this page have a slow (>300ms) First Input Delay (FID) 0%
Interaction To Next Paint (INP)38ms 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)1.5s 90% of loads for this page have a fast (<2500ms) Largest Contentful Paint (LCP) 90% 6% of loads for this page have an average (2500ms ~ 4000ms) Largest Contentful Paint (LCP) 6% 2% of loads for this page have a slow (>4000ms) Largest Contentful Paint (LCP) 2%

Lab Data

Has a `<meta name="viewport">` tag with `width` or `initial-scale`  
A `<meta name="viewport">` not only optimizes your app for mobile screen sizes, but also prevents . a 300 millisecond delay to user input Learn more about using the viewport meta tag
Speed Index 2.4 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more about the Speed Index metric
First Meaningful Paint 2.1 s
First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful Paint metric
Total Blocking Time 290 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
Time to Interactive 3.4 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
First Contentful Paint 2.1 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more about the First Contentful Paint metric
Timing budget  
Set a timing budget to help you keep an eye on the performance of your site. Performant sites load fast and respond to user input events quickly. Learn more about performance budgets
Performance budget  
Keep the quantity and size of network requests under the targets set by the provided performance budget. Learn more about performance budgets
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 300 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
Largest Contentful Paint 2.2 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more about the Largest Contentful Paint metric

Page Speed (Google PageSpeed Insights) - Mobile

50
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 94% 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)919ms 69% of loads for this page have a fast (<800s) Time To First Byte (TTFB) 67% 25% of loads for this page have an average (800s ~ 1800s) Time To First Byte (TTFB) 25% 6% of loads for this page have a slow (>1800s) Time To First Byte (TTFB) 6%
First Contentful Paint (FCP)1.8s 88% of loads for this page have a fast (<1.8s) First Contentful Paint (FCP) 74% 18% of loads for this page have an average (1.8s ~ 3s) First Contentful Paint (FCP) 18% 6% of loads for this page have a slow (>3s) First Contentful Paint (FCP) 6%
First Input Delay (FID)16ms 95% of loads for this page have a fast (<100ms) First Input Delay (FID) 95% 1% of loads for this page have an average (100ms ~ 300ms) First Input Delay (FID) 1% 2% of loads for this page have a slow (>300ms) First Input Delay (FID) 2%
Interactive To Next Paint (INP)93ms 98% of loads for this page have a fast (<200s) Interactive To Next Paint (INP) 87% 3% of loads for this page have an average (200s ~ 500s) Interactive To Next Paint (INP) 3% 9% of loads for this page have a slow (>500s) Interactive To Next Paint (INP) 9%
Largest Contentful Paint (LCP)2.1s 92% of loads for this page have a fast (<2500s) Largest Contentful Paint (LCP) 83% 12% of loads for this page have an average (2500s ~ 4000s) Largest Contentful Paint (LCP) 12% 4% of loads for this page have a slow (>4000s) Largest Contentful Paint (LCP) 4%

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)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)980ms 64% of loads for this page have a fast (<0.8s) Time To First Byte (TTFB) 64% 28% of loads for this page have an average (0.8s ~ 1.8s) Time To First Byte (TTFB) 28% 6% of loads for this page have a slow (>1.8s) Time To First Byte (TTFB) 6%
First Contentful Paint (FCP)1.9s 73% of loads for this page have a fast (<1.8s) First Contentful Paint (FCP) 73% 18% of loads for this page have an average (1.8s ~ 3s) First Contentful Paint (FCP) 18% 7% of loads for this page have a slow (>3s) First Contentful Paint (FCP) 7%
First Input Delay (FID)15ms 100% of loads for this page have a fast (<100ms) First Input Delay (FID) 94% 2% of loads for this page have an average 100ms ~ 300ms) First Input Delay (FID) 2% 2% of loads for this page have a slow (>300ms) First Input Delay (FID) 2%
Interactive To Next Paint (INP)120ms 84% of loads for this page have a fast (<0.2s) Interactive To Next Paint (INP) 84% 6% of loads for this page have an average (0.2s ~ 0.5s) Interactive To Next Paint (INP) 6% 9% of loads for this page have a slow (>0.5s) Interactive To Next Paint (INP) 9%
Largest Contentful Paint (LCP)2.1s 83% of loads for this page have a fast (<2.5s)Largest Contentful Paint (LCP) 83% 12% of loads for this page have an average (2.5s ~ 4s)Largest Contentful Paint (LCP) 12% 4% of loads for this page have a slow (>4s)Largest Contentful Paint (LCP) 4%

Lab Data

Time to Interactive 11.7 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
Performance budget  
Keep the quantity and size of network requests under the targets set by the provided performance budget. Learn more about performance budgets
Max Potential First Input Delay 220 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
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
Timing budget  
Set a timing budget to help you keep an eye on the performance of your site. Performant sites load fast and respond to user input events quickly. Learn more about performance budgets
Speed Index 7.1 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more about the Speed Index metric
Has a `<meta name="viewport">` tag with `width` or `initial-scale`  
A `<meta name="viewport">` not only optimizes your app for mobile screen sizes, but also prevents . a 300 millisecond delay to user input Learn more about using the viewport meta tag
Largest Contentful Paint 6.4 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more about the Largest Contentful Paint metric
First Meaningful Paint 4.2 s
First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful Paint metric
First Contentful Paint 4.2 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more about the First Contentful Paint metric
Total Blocking Time 500 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

Does thisweekinswingnyc.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 thisweekinswingnyc.com are reduced by 58%.
thisweekinswingnyc.com use gzip compression.
Original size: 180.83 KB
Compressed size: 75.15 KB
File reduced by: 105.69 KB (58%)

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:
  UNKNOWN

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. thisweekinswingnyc.com supports HTTPS.
 thisweekinswingnyc.com supports HTTPS
     
Verifying SSL Support. Please wait...
Common Name: cpcontacts.thisweekinswingnyc.com
Organization:
Location:
Issuer: R3
Valid from: Jul 25 13:06:10 2023 GMT
Valid until: Oct 23 13:06:09 2023 GMT
Authority: CA:FALSE
Keysize: 2048 Bits
Common Name: R3
Organization: Let's Encrypt
Location: US
Issuer: ISRG Root X1
Valid from: Sep 4 00:00:00 2020 GMT
Valid until: Sep 15 16:00:00 2025 GMT
Authority: CA:TRUE
Keysize: 2048 Bits
Common Name: ISRG Root X1
Organization: Internet Security Research Group
Location: US
Issuer: DST Root CA X3
Valid from: Jan 20 19:14:03 2021 GMT
Valid until: Sep 30 18:14:03 2024 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.
 thisweekinswingnyc.com 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. 
date: Sat, 19 Aug 2023 21:06:03 GMT
server: nginx/1.21.6
content-type: text/html; charset=UTF-8
last-modified: Sat, 19 Aug 2023 17:54:00 GMT
vary: Accept-Encoding
content-encoding: gzip
host-header: c2hhcmVkLmJsdWVob3N0LmNvbQ==
x-endurance-cache-level: 2
x-nginx-cache: WordPress
x-server-cache: true
x-proxy-cache: EXPIRED

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
HINFO 3600
A 162.241.219.188 3518
NS ns1.bluehost.com 3517
NS ns2.bluehost.com 3517

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 May 31, 2017 and will expire on May 31, 2024 if not renewed. This website is now assigned through the registrar FastDomain Inc.. The WHOIS data for this website's domain was last updated on October 17, 2022.
Domain Created:
2017-05-31
Domain Expires:
2024-05-31
Domain Updated:
2022-10-17
Domain Age:
7 years 5 months 8 days
Domain Registrar:
FastDomain Inc.
Domain Owner:
MANDI GOULD
WhoIs:
 

Domain Name: THISWEEKINSWINGNYC.COM
Registry Domain ID: 9659663
Registrar WHOIS Server: whois.bluehost.com
Registrar URL: http://www.bluehost.com/
Updated Date: 2022-10-17T02:39:36Z
Creation Date: 2017-05-31T12:40:23Z
Registrar Registration Expiration Date: 2024-05-31T12:40:23Z
Registrar: FastDomain Inc.
Registrar IANA ID: 1154
Registrar Abuse Contact Email: email
Registrar Abuse Contact Phone: 888-210-3278
Reseller: BlueHost.Com
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Registry Registrant ID: 
Registrant Name: MANDI GOULD
Registrant Organization: 
Registrant Street: 120 GEORGE ST.  
Registrant City: ST. CATHARINES
Registrant State/Province: ONTARIO
Registrant Postal Code: L2R 5P3
Registrant Country: CA
Registrant Phone: +1.4163182920
Registrant Phone Ext: 
Registrant Fax: 
Registrant Fax Ext: 
Registrant Email: email
Registry Admin ID: 
Admin Name: MANDI GOULD
Admin Organization: 
Admin Street: 120 GEORGE ST.  
Admin City: ST. CATHARINES
Admin State/Province: ONTARIO
Admin Postal Code: L2R 5P3
Admin Country: CA
Admin Phone: +1.4163182920
Admin Phone Ext: 
Admin Fax: 
Admin Fax Ext: 
Admin Email: email
Registry Tech ID: 
Tech Name: BLUEHOST INC
Tech Organization: BLUEHOST.COM
Tech Street: 5335 GATE PKWY.  
Tech City: JACKSONVILLE
Tech State/Province: FLORIDA
Tech Postal Code: 32256
Tech Country: US
Tech Phone: +1.8017659400
Tech Phone Ext: 
Tech Fax: +1.8017651992
Tech Fax Ext: 
Tech Email: email
Name Server: NS1.BLUEHOST.COM
Name Server: NS2.BLUEHOST.COM
DNSSEC: unsigned
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/
>>> Last update of WHOIS database: 2022-10-17T02:39:36Z