superjump.world Superjump.world

   
Всемирная Ассоциация Интеллект-тренеров Super Jump

Domain Summary

What is the traffic rank for Superjump.world?

• Superjump.world ranks #2,777,236 globally on HypeStat.

What percent of global Internet users visit Superjump.world?

• 0.00022% of global Internet users visit Superjump.world

How many people visit Superjump.world each day?

• Superjump.world receives approximately 2.5K visitors and 12,991 page impressions per day.

Which countries does Superjump.world receive most of its visitors from?

• Superjump.world is mostly visited by people located in Belarus,Russian Federation.

How much Superjump.world can earn?

• Superjump.world should earn about $6.58/day from advertising revenue.

What is Superjump.world estimated value?

• Estimated value of Superjump.world is $7,103.69.

What IP addresses does Superjump.world resolve to?

• Superjump.world resolves to the IP addresses 104.21.21.189.

Where are Superjump.world servers located in?

• Superjump.world has servers located in United States.

superjump.world Profile

Title: Всемирная Ассоциация Интеллект-тренеров Super Jump
Edit Site Info

What technologies does superjump.world use?

These are the technologies used at superjump.world. superjump.world has a total of 6 technologies installed in 5 different categories.
CDN
CloudFlare CloudFlare
Unpkg Unpkg
Issue Trackers
Cloudflare Network Error Logging Cloudflare Network Error Logging
Font Scripts
Google Font API Google Font API
Miscellaneous
HTTP/3 HTTP/3
JavaScript Libraries
jQuery jQuery

superjump.world Traffic Analysis

Superjump.world is ranked #2,777,236 in the world. This website is viewed by an estimated 2.5K visitors daily, generating a total of 13K pageviews. This equates to about 76.2K monthly visitors. Superjump.world traffic has increased by 18575% compared to last month.
Daily Visitors2.5K
2829.41%
Monthly Visits76.2K
18575%
Pages per Visit5.17
10.09%
Visit duration32:02
656.69%
Bounce Rate27.45%
45.1%
Is this your site?Verify your site's metrics.
Daily Unique Visitors:
2,514
Monthly Visits:
76,174
Pages per Visit:
5.17
Daily Pageviews:
12,991
Avg. visit duration:
32:02
Bounce rate:
27.45%
Global Reach:
0.00022%
Monthly Visits (SEMrush):
76,194
Monthly Unique Visitors (SEMrush):
2,988
HypeRank:
2,777,236
SEMrush Rank:
27,482,738
*All traffic values are estimates only.

Traffic sources

Direct:
73.53%
Referral:
11.76%
Search:
9.80%
Social:
4.90%
Paid:
0%

Desktop vs Mobile

Desktop:
100.00%
Mobile:
0%

Visitors by country

Country
Users%
 
Belarus 62.9%
 
Russian Federation 37.1%

Where do visitors go on superjump.world?

 
Reach%Pageviews%PerUser
cabinet.superjump.world
100.00%94.48%4.1
OTHER
0%5.49%0
Last update was 672 days ago
     
This can take up to 60 seconds. Please wait...

*HypeStat.com is not promoting or affiliated with superjump.world 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:
  superjump.world
Rank:
(Rank based on keywords, cost and organic traffic)
  27,482,738
Organic Keywords:
(Number of keywords in top 20 Google SERP)
  11
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 $6.6 per day if the source of income were advertisements, which equates to an estimated monthly revenue of $197.4 and annual gross revenue of approximately $2.4K. Based on these figures, the site's net worth is estimated at around $7.1K.

How much would superjump.world make?

Daily Revenue:
$6.58
Monthly Revenue:
$197.40
Yearly Revenue:
$2,401.70
*All earnings values are estimates only.

Daily earning by country

 
CountryPageviewsEarning
 
Belarus 9,613$5.19
 
Russian Federation 3,248$1.33

Loss of money due to Adblock?

Daily Revenue Loss:
$0.60
Monthly Revenue Loss:
$17.97
Yearly Revenue Loss:
$218.64
Daily Pageviews Blocked:
1,156
Monthly Pageviews Blocked:
34,686
Yearly Pageviews Blocked:
422,013

Daily revenue loss by country

 
CountryBlockedLost Money
 
Belarus 961$0.52
 
Russian Federation 195$0.08

How much is superjump.world worth?

Website Value:
$7.1K

Ad Experience Report ▼

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

Mobile summary

Root domain:
superjump.world
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:
superjump.world
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:
superjump.world
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 superjump.world hosted? ▼

Superjump.world may be hosted in multiple data centers distributed in different locations around the world. This is probably just one of them.
Server IP:
104.21.21.189
ASN:
AS13335 
ISP:
Cloudflare Inc 
Server Location:

United States, US
 

Other sites hosted on 104.21.21.189

How fast does superjump.world load? ▼

The average loading time of superjump.world is 1696 ms. The Desktop speed index is 73 and mobile speed index is 53.
Average Load Time:
1696 ms

Page Speed (Google PageSpeed Insights) - Desktop

73
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)13ms 49% of loads for this page have a fast (<0.01s) Cumulative Layout Shift (CLS) 49% 45% of loads for this page have an average (0.01s ~ 0.025s) Cumulative Layout Shift (CLS) 45% 4% of loads for this page have a slow (>0.025s) Cumulative Layout Shift (CLS) 4%
Time To First Byte (TTFB)588ms 87% of loads for this page have a fast (<0.8s) Time To First Byte (TTFB) 87% 9% of loads for this page have an average (0.8s ~ 1.8s) Time To First Byte (TTFB) 9% 3% of loads for this page have a slow (>1.8s) Time To First Byte (TTFB) 3%
First Contentful Paint (FCP)1.9s 74% of loads for this page have a fast (<1.8s) First Contentful Paint (FCP) 74% 13% of loads for this page have an average (1.8s ~ 3s) First Contentful Paint (FCP) 13% 12% of loads for this page have a slow (>3s) First Contentful Paint (FCP) 12%
First Input Delay (FID)4ms 95% of loads for this page have a fast (<100ms) First Input Delay (FID) 95% 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%
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)2.9s 70% of loads for this page have a fast (<2500ms) Largest Contentful Paint (LCP) 70% 17% of loads for this page have an average (2500ms ~ 4000ms) Largest Contentful Paint (LCP) 17% 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 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)13ms 57% of loads for this page have a fast (<0.01s) Cumulative Layout Shift (CLS) 57% 34% of loads for this page have an average (0.01s ~ 0.025s) Cumulative Layout Shift (CLS) 34% 8% of loads for this page have a slow (>0.025s) Cumulative Layout Shift (CLS) 8%
Time To First Byte (TTFB)571ms 86% of loads for this page have a fast (<0.8s) Time To First Byte (TTFB) 86% 8% of loads for this page have an average (0.8s ~ 1.8s) Time To First Byte (TTFB) 8% 5% of loads for this page have a slow (>1.8s) Time To First Byte (TTFB) 5%
First Contentful Paint (FCP)1.8s 75% of loads for this page have a fast (<1.8s) First Contentful Paint (FCP) 75% 11% of loads for this page have an average (1.8s ~ 3s) First Contentful Paint (FCP) 11% 12% of loads for this page have a slow (>3s) First Contentful Paint (FCP) 12%
First Input Delay (FID)4ms 96% of loads for this page have a fast (<100ms) First Input Delay (FID) 96% 1% of loads for this page have an average 100ms ~ 300ms) First Input Delay (FID) 1% 1% of loads for this page have a slow (>300ms) First Input Delay (FID) 1%
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)2.8s 72% of loads for this page have a fast (<2500ms) Largest Contentful Paint (LCP) 72% 14% of loads for this page have an average (2500ms ~ 4000ms) Largest Contentful Paint (LCP) 14% 12% of loads for this page have a slow (>4000ms) Largest Contentful Paint (LCP) 12%

Lab Data

Avoids `unload` event listeners  
The `unload` event does not fire reliably and listening for it can prevent browser optimizations like the Back-Forward Cache. Use `pagehide` or `visibilitychange` events instead. Learn more
Largest Contentful Paint image was not lazily loaded  
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint. Learn more
Performance budget  
Keep the quantity and size of network requests under the targets set by the provided performance budget. Learn more
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
Speed Index 1.7 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more
First Meaningful Paint 0.7 s
First Meaningful Paint measures when the primary content of a page is visible. Learn more
First Contentful Paint 0.7 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more
Largest Contentful Paint 3.3 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more
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
Time to Interactive 3.2 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more
Total Blocking Time 80 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more
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
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 more

Page Speed (Google PageSpeed Insights) - Mobile

53
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)3ms 49% of loads for this page have a fast (<0.01s) Cumulative Layout Shift (CLS) 88% 8% of loads for this page have an average (0.01s ~ 0.025s) Cumulative Layout Shift (CLS) 8% 3% of loads for this page have a slow (>0.025s) Cumulative Layout Shift (CLS) 3%
Time To First Byte (TTFB)713ms 87% of loads for this page have a fast (<800s) Time To First Byte (TTFB) 79% 15% of loads for this page have an average (800s ~ 1800s) Time To First Byte (TTFB) 15% 5% of loads for this page have a slow (>1800s) Time To First Byte (TTFB) 5%
First Contentful Paint (FCP)1.8s 74% of loads for this page have a fast (<1.8s) First Contentful Paint (FCP) 75% 12% of loads for this page have an average (1.8s ~ 3s) First Contentful Paint (FCP) 12% 11% of loads for this page have a slow (>3s) First Contentful Paint (FCP) 11%
First Input Delay (FID)18ms 94% of loads for this page have a fast (<100ms) First Input Delay (FID) 94% 3% of loads for this page have an average (100ms ~ 300ms) First Input Delay (FID) 3% 2% of loads for this page have a slow (>300ms) First Input Delay (FID) 2%
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)2.5s 70% of loads for this page have a fast (<2500s) Largest Contentful Paint (LCP) 74% 13% of loads for this page have an average (2500s ~ 4000s) Largest Contentful Paint (LCP) 13% 11% of loads for this page have a slow (>4000s) Largest Contentful Paint (LCP) 11%

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)2ms 89% of loads for this page have a fast (<0.01s) Cumulative Layout Shift (CLS) 89% 6% of loads for this page have an average (0.01s ~ 0.025s) Cumulative Layout Shift (CLS) 6% 3% of loads for this page have a slow (>0.025s) Cumulative Layout Shift (CLS) 3%
Time To First Byte (TTFB)663ms 81% of loads for this page have a fast (<0.8s) Time To First Byte (TTFB) 81% 13% of loads for this page have an average (0.8s ~ 1.8s) Time To First Byte (TTFB) 13% 5% of loads for this page have a slow (>1.8s) Time To First Byte (TTFB) 5%
First Contentful Paint (FCP)1.8s 76% of loads for this page have a fast (<1.8s) First Contentful Paint (FCP) 76% 12% of loads for this page have an average (1.8s ~ 3s) First Contentful Paint (FCP) 12% 11% of loads for this page have a slow (>3s) First Contentful Paint (FCP) 11%
First Input Delay (FID)26ms 96% of loads for this page have a fast (<100ms) First Input Delay (FID) 91% 5% of loads for this page have an average 100ms ~ 300ms) First Input Delay (FID) 5% 3% of loads for this page have a slow (>300ms) First Input Delay (FID) 3%
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)2.5s 74% of loads for this page have a fast (<2.5s)Largest Contentful Paint (LCP) 74% 14% of loads for this page have an average (2.5s ~ 4s)Largest Contentful Paint (LCP) 14% 11% of loads for this page have a slow (>4s)Largest Contentful Paint (LCP) 11%

Lab Data

First Meaningful Paint 2.5 s
First Meaningful Paint measures when the primary content of a page is visible. Learn more
Speed Index 7.2 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more
Performance budget  
Keep the quantity and size of network requests under the targets set by the provided performance budget. Learn more
First Contentful Paint (3G) 4890 ms
First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network. Learn more
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
Max Potential First Input Delay 860 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more
Largest Contentful Paint image was not lazily loaded  
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint. Learn more
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
Largest Contentful Paint 4.8 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more
First Contentful Paint 2.5 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more
Total Blocking Time 400 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more
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 more
Time to Interactive 18.1 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more
Avoids `unload` event listeners  
The `unload` event does not fire reliably and listening for it can prevent browser optimizations like the Back-Forward Cache. Use `pagehide` or `visibilitychange` events instead. Learn more

Does superjump.world 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 superjump.world are reduced by 88%.
superjump.world use br compression.
Original size: 95.04 KB
Compressed size: 11.22 KB
File reduced by: 83.82 KB (88%)

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. superjump.world supports HTTPS.
 superjump.world supports HTTPS
     
Verifying SSL Support. Please wait...
Common Name: sni.cloudflaressl.com
Organization: "Cloudflare, Inc."
Location: San Francisco, California, US
Issuer: Cloudflare Inc ECC CA-3
Valid from: Mar 28 00:00:00 2022 GMT
Valid until: Mar 27 23:59:59 2023 GMT
Authority: CA:FALSE
Keysize:
Common Name: Cloudflare Inc ECC CA-3
Organization: "Cloudflare, Inc."
Location: US
Issuer: Baltimore CyberTrust Root
Valid from: Jan 27 12:48:08 2020 GMT
Valid until: Dec 31 23:59:59 2024 GMT
Authority: CA:TRUE
Keysize:

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.
 superjump.world 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: Fri, 10 Feb 2023 16:54:41 GMT
content-type: text/html; charset=UTF-8
vary: Accept-Encoding
x-frame-options: SAMEORIGIN
x-xss-protection: 1; mode=block
x-content-type-options: nosniff
cf-cache-status: DYNAMIC
report-to: {"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v3?s=T6JZcqTlqluuKXPnoMN8fenggvErRwxRn8T6i5JGobBImfBNLmogyWiEhjOKCydmCZL9TAip2lA3C9OTNRY7LFL3bZCKVpzRaXmcetZQYxwWanaeoU7%2BUmHU3QLDKJajf3M%3D"}],"group":"cf-nel","max_age":604800}
nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
server: cloudflare
cf-ray: 79765e3eed396312-ORD
content-encoding: br
alt-svc: h3=":443"; ma=86400, h3-29=":443"; ma=86400

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 104.21.21.189 226
A 172.67.200.10 226
NS matt.ns.cloudflare.com 3526
NS lola.ns.cloudflare.com 3526

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 June 24, 2020 and will expire on June 24, 2028 if not renewed. This website is now assigned through the registrar Registrar of domain names REG.RU LLC. The WHOIS data for this website's domain was last updated on January 23, 2023.
Domain Created:
2020-06-24
Domain Expires:
2028-06-24
Domain Updated:
2023-01-23
Domain Age:
4 years 5 months 20 days
Domain Registrar:
Registrar of domain names REG.RU LLC
Domain Owner:
Private Person
WhoIs:
 

Domain name: SUPERJUMP.WORLD
Registry Domain ID: 5708be2c6562431ead1e5b2771c8c725-DONUTS
Registrar WHOIS Server: whois.reg.com
Registrar URL: https://www.reg.com
Registrar URL: https://www.reg.ru
Updated Date: 2023-01-23T08:26:53Z
Creation Date: 2020-06-24T14:39:15Z
Registrar Registration Expiration Date: 2028-06-24T14:39:15Z
Registrar: Registrar of domain names REG.RU LLC
Registrar IANA ID: 1606
Registrar Abuse Contact Email: email
Registrar Abuse Contact Phone: +7.4955801111
Status: clientTransferProhibited http://www.icann.org/epp#clientTransferProhibited
Registry Registrant ID: 
Registrant Name: Petr Silkin
Registrant Organization: Private Person
Registrant Street: Krasnogrskiy bulvar 26
Registrant City: Krasnogorsk
Registrant State/Province: Moskovskaya oblast
Registrant Postal Code: 143405
Registrant Country: RU
Registrant Phone: +7.9057138187
Registrant Phone Ext:
Registrant Fax: 
Registrant Fax Ext:
Registrant Email: email
Registry Admin ID: 
Admin Name: Petr Silkin
Admin Organization: Private Person
Admin Street: Krasnogrskiy bulvar 26
Admin City: Krasnogorsk
Admin State/Province: Moskovskaya oblast
Admin Postal Code: 143405
Admin Country: RU
Admin Phone: +7.9057138187
Admin Phone Ext:
Admin Fax: 
Admin Fax Ext:
Admin Email: email
Registry Tech ID:  
Tech Name: Petr Silkin
Tech Organization: Private Person
Tech Street: Krasnogrskiy bulvar 26
Tech City: Krasnogorsk
Tech State/Province: Moskovskaya oblast
Tech Postal Code: 143405
Tech Country: RU
Tech Phone: +7.9057138187
Tech Phone Ext:
Tech Fax: 
Tech Fax Ext:
Tech Email: email
Name Server: lola.ns.cloudflare.com 
Name Server: matt.ns.cloudflare.com 
DNSSEC: Unsigned
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/
>>> Last update of WHOIS database: 2023.02.10T19:55:55Z