file1040ezfree.com File1040ezfree.com

   
Tax Return, Tax Refund, IRS, Taxes, efile, Income Tax, E-File

Domain Summary

What is the traffic rank for File1040ezfree.com?

• File1040ezfree.com ranks #6,066,206 globally on HypeStat.

What percent of global Internet users visit File1040ezfree.com?

1.2E-6% of global Internet users visit File1040ezfree.com

How many people visit File1040ezfree.com each day?

• File1040ezfree.com receives approximately 59 visitors and 59 page impressions per day.

How much File1040ezfree.com can earn?

• File1040ezfree.com should earn about $0.24/day from advertising revenue.

What is File1040ezfree.com estimated value?

• Estimated value of File1040ezfree.com is $229.12.

What IP addresses does File1040ezfree.com resolve to?

• File1040ezfree.com resolves to the IP addresses 13.249.141.127.

Where are File1040ezfree.com servers located in?

• File1040ezfree.com has servers located in United States.

file1040ezfree.com Profile

Title:Tax Return, Tax Refund, IRS, Taxes, efile, Income Tax, E-File
Category:Finance / Accounting and Auditing

What technologies does file1040ezfree.com use?

These are the technologies used at file1040ezfree.com. file1040ezfree.com has a total of 8 technologies installed in 8 different categories.

file1040ezfree.com Traffic Analysis

File1040ezfree.com is ranked #6,066,206 in the world. This website is viewed by an estimated 59 visitors daily, generating a total of 59 pageviews. This equates to about 1.8K monthly visitors. File1040ezfree.com traffic has decreased by 93.29% compared to last month.
Daily Visitors59
93.29%
Monthly Visits1.8K
93.29%
Pages per Visit1.00
Visit duration n/a
Bounce Rate100.00%
Is this your site?Verify your site's metrics.
Daily Unique Visitors:
59
Monthly Visits:
1,788
Pages per Visit:
1.00
Daily Pageviews:
59
Avg. visit duration:
n/a
Bounce rate:
100.00%
Global Reach:
1.2E-6%
Monthly Visits (SEMrush):
49
Monthly Unique Visitors (SEMrush):
49
Monthly Visits (SimilarWeb):
1,759
HypeRank:
6,066,206
SEMrush Rank:
37,987,981
SimilarWeb Rank:
7,752,607
*All traffic values are estimates only.

Traffic sources

Direct:
100.00%
Referral:
0%
Search:
0%
Social:
0%
Paid:
0%

Desktop vs Mobile

Desktop:
100.00%
Mobile:
0%

Total Visits Last 3 Months

12.3K
APR
26.6K
MAY
1.8K
JUN

Which sites are competitors to file1040ezfree.com?

Websites similar to file1040ezfree.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 495 days ago
     
This can take up to 60 seconds. Please wait...

*HypeStat.com is not promoting or affiliated with file1040ezfree.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:
1
Bing Index:
2

 

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:
  file1040ezfree.com
Rank:
(Rank based on keywords, cost and organic traffic)
  37,987,981
Organic Keywords:
(Number of keywords in top 20 Google SERP)
  9
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

Revenue report

Google.com would generate approximately $0.2 per day if the source of income were advertisements, which equates to an estimated monthly revenue of $7.2 and annual gross revenue of approximately $87.6. Based on these figures, the site's net worth is estimated at around $229.1.

How much would file1040ezfree.com make?

Daily Revenue:
$0.24
Monthly Revenue:
$7.20
Yearly Revenue:
$87.60
*All earnings values are estimates only.

How much is file1040ezfree.com worth?

Website Value:
$229.1

Ad Experience Report

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

Mobile summary

Root domain:
file1040ezfree.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:
file1040ezfree.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:
file1040ezfree.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 file1040ezfree.com hosted?

File1040ezfree.com may be hosted in multiple data centers distributed in different locations around the world. This is probably just one of them.
Server IP:
13.249.141.127
ASN:
AS16509 
ISP:
Amazon.com, Inc. 
Server Location:

United States, US
 

Other sites hosted on 13.249.141.127

How fast does file1040ezfree.com load?

The average loading time of file1040ezfree.com is 65 ms. The Desktop speed index is 98 and mobile speed index is 74.
Average Load Time:
65 ms

Page Speed (Google PageSpeed Insights) - Desktop

98
0-49 50-89 90-100 i

Field Data

Over the last 30 days, the field data shows that this page has a 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)0 0% of loads for this page have a fast (<0s) Cumulative Layout Shift (CLS) 0% 0% of loads for this page have an average (0s ~ 0s) Cumulative Layout Shift (CLS) 0% 0% of loads for this page have a slow (>0s) Cumulative Layout Shift (CLS) 0%
Time To First Byte (TTFB)0 0% of loads for this page have a fast (<0s) Time To First Byte (TTFB) 0% 0% of loads for this page have an average (0s ~ 0s) Time To First Byte (TTFB) 0% 0% of loads for this page have a slow (>0s) Time To First Byte (TTFB) 0%
First Contentful Paint (FCP)0 0% of loads for this page have a fast (<0s) First Contentful Paint (FCP) 0% 0% of loads for this page have an average (0s ~ 0s) First Contentful Paint (FCP) 0% 0% of loads for this page have a slow (>0s) 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)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)0 0% of loads for this page have a fast (<0ms) Largest Contentful Paint (LCP) 0% 0% of loads for this page have an average (0ms ~ 0ms) Largest Contentful Paint (LCP) 0% 0% of loads for this page have a slow (>0ms) Largest Contentful Paint (LCP) 0%

Origin Data

All pages served from this origin have an 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)0 0% of loads for this page have a fast (<0s) Cumulative Layout Shift (CLS) 0% 0% of loads for this page have an average (0s ~ 0s) Cumulative Layout Shift (CLS) 0% 0% of loads for this page have a slow (>0s) Cumulative Layout Shift (CLS) 0%
Time To First Byte (TTFB)0 0% of loads for this page have a fast (<0s) Time To First Byte (TTFB) 0% 0% of loads for this page have an average (0s ~ 0s) Time To First Byte (TTFB) 0% 0% of loads for this page have a slow (>0s) Time To First Byte (TTFB) 0%
First Contentful Paint (FCP)0 0% of loads for this page have a fast (<0s) First Contentful Paint (FCP) 0% 0% of loads for this page have an average (0s ~ 0s) First Contentful Paint (FCP) 0% 0% of loads for this page have a slow (>0s) 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)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)0 0% of loads for this page have a fast (<0ms) Largest Contentful Paint (LCP) 0% 0% of loads for this page have an average (0ms ~ 0ms) Largest Contentful Paint (LCP) 0% 0% of loads for this page have a slow (>0ms) Largest Contentful Paint (LCP) 0%

Lab Data

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
Largest Contentful Paint 1.0 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 20 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
Speed Index 0.9 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more about the Speed Index 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
First Contentful Paint 0.8 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 0.9 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
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
First Meaningful Paint 0.9 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 0 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

74
0-49 50-89 90-100 i

Field Data

Over the last 30 days, the field data shows that this page has a 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)0 0% of loads for this page have a fast (<0s) Cumulative Layout Shift (CLS) 0% 0% of loads for this page have an average (0s ~ 0s) Cumulative Layout Shift (CLS) 0% 0% of loads for this page have a slow (>0s) Cumulative Layout Shift (CLS) 0%
Time To First Byte (TTFB)0 0% of loads for this page have a fast (<0s) Time To First Byte (TTFB) 0% 0% of loads for this page have an average (0s ~ 0s) Time To First Byte (TTFB) 0% 0% of loads for this page have a slow (>0s) Time To First Byte (TTFB) 0%
First Contentful Paint (FCP)0 0% of loads for this page have a fast (<0s) First Contentful Paint (FCP) 0% 0% of loads for this page have an average (0s ~ 0s) First Contentful Paint (FCP) 0% 0% of loads for this page have a slow (>0s) 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)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)0 0% of loads for this page have a fast (<0s) Largest Contentful Paint (LCP) 0% 0% of loads for this page have an average (0s ~ 0s) Largest Contentful Paint (LCP) 0% 0% of loads for this page have a slow (>0s) Largest Contentful Paint (LCP) 0%

Origin Data

All pages served from this origin have an 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)0 0% of loads for this page have a fast (<0s) Cumulative Layout Shift (CLS) 0% 0% of loads for this page have an average (0s ~ 0s) Cumulative Layout Shift (CLS) 0% 0% of loads for this page have a slow (>0s) Cumulative Layout Shift (CLS) 0%
Time To First Byte (TTFB)0 0% of loads for this page have a fast (<0s) Time To First Byte (TTFB) 0% 0% of loads for this page have an average (0s ~ 0s) Time To First Byte (TTFB) 0% 0% of loads for this page have a slow (>0s) Time To First Byte (TTFB) 0%
First Contentful Paint (FCP)0 0% of loads for this page have a fast (<0s) First Contentful Paint (FCP) 0% 0% of loads for this page have an average (0s ~ 0s) First Contentful Paint (FCP) 0% 0% of loads for this page have a slow (>0s) 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)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)0 0% of loads for this page have a fast (<0s)Largest Contentful Paint (LCP) 0% 0% of loads for this page have an average (0s ~ 0s)Largest Contentful Paint (LCP) 0% 0% of loads for this page have a slow (>0s)Largest Contentful Paint (LCP) 0%

Lab Data

Max Potential First Input Delay 50 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 3.9 s
First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful Paint metric
Speed Index 3.9 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
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
First Contentful Paint 3.9 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 3.9 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
Largest Contentful Paint 4.7 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more about the Largest Contentful Paint 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
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
Total Blocking Time 0 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 file1040ezfree.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 file1040ezfree.com are reduced by %.
file1040ezfree.com does not use compression.
Original size: 8.01 KB
Compressed size: n/a
File reduced by: (%)

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. file1040ezfree.com supports HTTPS.
 file1040ezfree.com supports HTTPS
     
Verifying SSL Support. Please wait...
Common Name: e1040.co
Organization:
Location:
Issuer: Amazon RSA 2048 M02
Valid from: Feb 22 00:00:00 2023 GMT
Valid until: Oct 17 23:59:59 2023 GMT
Authority: CA:FALSE
Keysize: 2048 Bits
Common Name: Amazon RSA 2048 M02
Organization: Amazon
Location: US
Issuer: Amazon Root CA 1
Valid from: Aug 23 22:25:30 2022 GMT
Valid until: Aug 23 22:25:30 2030 GMT
Authority: CA:TRUE
Keysize: 2048 Bits
Common Name: Amazon Root CA 1
Organization: Amazon
Location: US
Issuer: Starfield Services Root Certificate Authority - G2
Valid from: May 25 12:00:00 2015 GMT
Valid until: Dec 31 01:00:00 2037 GMT
Authority: CA:TRUE
Keysize: 2048 Bits
Common Name: Starfield Services Root Certificate Authority - G2
Organization: "Starfield Technologies, Inc."
Location: Scottsdale, Arizona, US
Issuer:
Valid from: Sep 2 00:00:00 2009 GMT
Valid until: Jun 28 17:39:16 2034 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.
 file1040ezfree.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.
content-type: text/html; charset=UTF-8
content-length: 8200
date: Sun, 06 Aug 2023 06:32:01 GMT
server: Apache/2.4.41 () PHP/5.4.16
last-modified: Fri, 27 Jan 2023 16:11:26 GMT
etag: "2008-5f3411e0ac780"
accept-ranges: bytes
x-cache: Miss from cloudfront
via: 1.1 141029b3e261b8fcf3df752d67bae9ba.cloudfront.net (CloudFront)
x-amz-cf-pop: ORD51-C1
x-amz-cf-id: 2zQawpqcQQHVErumkE2ey15n4Q6s9Jw7mTKNwTMu67FF5_Eh3VQpww==

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 900
Mname ns-590.awsdns-09.net
Rname awsdns-hostmaster.amazon.com
Serial Number 1
Refresh 7200
Retry 900
Expire 1209600
Minimum TTL 86400
A 13.249.141.108 60
A 13.249.141.58 60
A 13.249.141.127 60
A 13.249.141.15 60
NS ns-1602.awsdns-08.co.uk 3537
NS ns-590.awsdns-09.net 3537
NS ns-1415.awsdns-48.org 3537
NS ns-152.awsdns-19.com 3537

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 January 25, 2012 and will expire on January 25, 2024 if not renewed. This website is now assigned through the registrar Wild West Domains, LLC. The WHOIS data for this website's domain was last updated on July 13, 2022.
Domain Created:
2012-01-25
Domain Expires:
2024-01-25
Domain Updated:
2022-07-13
Domain Age:
12 years 10 months 20 days
Domain Registrar:
Wild West Domains, LLC
Domain Owner:
Domains By Proxy, LLC
WhoIs:
 

Domain Name: file1040ezfree.com
Registry Domain ID: 1698741016_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.wildwestdomains.com
Registrar URL: https://www.wildwestdomains.com
Updated Date: 2022-07-13T23:24:12Z
Creation Date: 2012-01-25T19:01:01Z
Registrar Registration Expiration Date: 2024-01-25T19:01:01Z
Registrar: Wild West Domains, LLC
Registrar IANA ID: 440
Registrar Abuse Contact Email: email
Registrar Abuse Contact Phone: +1.4806242505
Domain Status: ok https://icann.org/epp#ok
Registry Registrant ID: Not Available From Registry
Registrant Name: Registration Private
Registrant Organization: Domains By Proxy, LLC
Registrant Street: DomainsByProxy.com
Registrant Street: 2155 E Warner Rd
Registrant City: Tempe
Registrant State/Province: Arizona
Registrant Postal Code: 85284
Registrant Country: US
Registrant Phone: +1.4806242599
Registrant Phone Ext:
Registrant Fax: 
Registrant Fax Ext:
Registrant Email: Select Contact Domain Holder link at https://www.secureserver.net/whois?plid=1387&domain=file1040ezfree.com
Registry Admin ID: Not Available From Registry
Admin Name: Registration Private
Admin Organization: Domains By Proxy, LLC
Admin Street: DomainsByProxy.com
Admin Street: 2155 E Warner Rd
Admin City: Tempe
Admin State/Province: Arizona
Admin Postal Code: 85284
Admin Country: US
Admin Phone: +1.4806242599
Admin Phone Ext:
Admin Fax: 
Admin Fax Ext:
Admin Email: Select Contact Domain Holder link at https://www.secureserver.net/whois?plid=1387&domain=file1040ezfree.com
Registry Tech ID: Not Available From Registry
Tech Name: Registration Private
Tech Organization: Domains By Proxy, LLC
Tech Street: DomainsByProxy.com
Tech Street: 2155 E Warner Rd
Tech City: Tempe
Tech State/Province: Arizona
Tech Postal Code: 85284
Tech Country: US
Tech Phone: +1.4806242599
Tech Phone Ext:
Tech Fax: 
Tech Fax Ext:
Tech Email: Select Contact Domain Holder link at https://www.secureserver.net/whois?plid=1387&domain=file1040ezfree.com
Name Server: NS-1415.AWSDNS-48.ORG
Name Server: NS-152.AWSDNS-19.COM
Name Server: NS-1602.AWSDNS-08.CO.UK
Name Server: NS-590.AWSDNS-09.NET
DNSSEC: unsigned
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/
>>> Last update of WHOIS database: 2023-08-06T06:33:04Z