Romankogan.net
Roman Kogan - Mathematics and All That Jazz
Domain Summary
What percent of global Internet users visit Romankogan.net?
• 1.0E-6% of global Internet users visit Romankogan.net
How many people visit Romankogan.net each day?
• Romankogan.net receives approximately 52 visitors and 53 page impressions per day.
Which countries does Romankogan.net receive most of its visitors from?
• Romankogan.net is mostly visited by people located in United States,Finland,Thailand.
How much Romankogan.net can earn?
• Romankogan.net should earn about $0.18/day from advertising revenue.
What is Romankogan.net estimated value?
• Estimated value of Romankogan.net is $178.30.
What IP addresses does Romankogan.net resolve to?
• Romankogan.net resolves to the IP addresses 162.241.218.115.
Where are Romankogan.net servers located in?
• Romankogan.net has servers located in United States.
romankogan.net Profile

What technologies does romankogan.net use?
These are the technologies used at romankogan.net. romankogan.net has a total of 7 technologies installed in 10 different categories.romankogan.net Traffic Analysis
This website is viewed by an estimated 52 visitors daily, generating a total of 53 pageviews. This equates to about 1.6K monthly visitors.Daily Visitors52
Monthly Visits1.6K
Pages per Visit1.02
Visit duration n/a
Bounce Rate40.61%
Is this your site?Verify your site's metrics.
- Daily Unique Visitors:
- 52
- Monthly Visits:
- 1,576
- Pages per Visit:
- 1.02
- Daily Pageviews:
- 53
- Avg. visit duration:
- n/a
- Bounce rate:
- 40.61%
- Global Reach:
- 1.0E-6%
- Monthly Visits (SimilarWeb):
- 1,567
- HypeRank:
- n/a
- SEMrush Rank:
- 11,617,974
- SimilarWeb Rank:
- 9,111,931
Total Visits Last 3 Months
1.6K
FEB
1.6K
MAR
1.6K
APR
Visitors by country
- Country
- Users%
- United States 57.58%
- Finland 36.90%
- Thailand 5.51%
Backlinks Report ▼
Romankogan.net has a total of 806 backlinks from 146 referring domains and most of them comes from United States.- Total Backlinks:
- 806
- Follow Links:
- n/a
- Nofollow Links:
- n/a
- Referring Domains:
- 146
- Referring IPs:
- 149
- Authority Domain Score:
- 7
Backlinks by country
- Country
- Domains
- United States 51
- Germany 12
- Russian Federation 4
- Romania 2
- Viet Nam 1
Backlinks by TLDs
- TLD Distribution
- Domains
- .com
- 32
- .app
- 26
- .dev
- 13
- .edu
- 0
- .gov
- 0
Last update was 6 hours ago
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Update will be available in 18 hours
*HypeStat.com is not promoting or affiliated with romankogan.net 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:
- 143
▼
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.- Domain:
- romankogan.net
- Rank:
(Rank based on keywords, cost and organic traffic) - 11,617,974
- Organic Keywords:
(Number of keywords in top 20 Google SERP) - 18
- Organic Traffic:
(Number of visitors coming from top 20 search results) - 1
- 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 $5.4 and annual gross revenue of approximately $65.7. Based on these figures, the site's net worth is estimated at around $178.3.How much would romankogan.net make?
- Daily Revenue:
- $0.18
- Monthly Revenue:
- $5.40
- Yearly Revenue:
- $65.70
Daily earning by country
- CountryPageviewsEarning
- United States 31$0.15
- Finland 20$0.04
- Thailand 3$0.00
Loss of money due to Adblock?
- Daily Revenue Loss:
- $0.04
- Monthly Revenue Loss:
- $1.05
- Yearly Revenue Loss:
- $12.79
- Daily Pageviews Blocked:
- 10
- Monthly Pageviews Blocked:
- 305
- Yearly Pageviews Blocked:
- 3,711
Daily revenue loss by country
- CountryBlockedLost Money
- United States 5$0.03
- Finland 4$0.01
- Thailand 0$0.00
How much is romankogan.net worth?
- Website Value:
- $178.3
Ad Experience Report ▼
Summary of the ad experience rating of a website for a specific platform.Mobile summary
- Root domain:
- romankogan.net
- 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:
- romankogan.net
- 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:
- romankogan.net
- 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 romankogan.net hosted? ▼
Romankogan.net may be hosted in multiple data centers distributed in different locations around the world. This is probably just one of them.- Server IP:
- 162.241.218.115
- ASN:
- AS46606
- ISP:
- Unified Layer
- Server Location:
United States, US
Other sites hosted on 162.241.218.115
How fast does romankogan.net load? ▼
The average loading time of romankogan.net is 1329 ms. The Desktop speed index is 98 and mobile speed index is 99.- Average Load Time:
- 1329 ms
Page Speed (Google PageSpeed Insights) - Desktop
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
Time To First Byte (TTFB)0
First Contentful Paint (FCP)0
First Input Delay (FID)0
Interaction To Next Paint (INP)0
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
Time To First Byte (TTFB)0
First Contentful Paint (FCP)0
First Input Delay (FID)0
Interaction To Next Paint (INP)0
Largest Contentful Paint (LCP)0
Lab Data
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
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
Minimize third-party usage
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading. Learn how to minimize third-party impact
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading. Learn how to minimize third-party impact
Duplicated JavaScript
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
Largest Contentful Paint 0.4 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more about the Largest Contentful Paint metric
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more about the Largest Contentful Paint metric
Legacy JavaScript
Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile features, unless you know you must support legacy browsers. Baseline Learn why most sites can deploy ES6+ code without transpiling
Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile features, unless you know you must support legacy browsers. Baseline Learn why most sites can deploy ES6+ code without transpiling
First Contentful Paint 0.4 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more about the First Contentful Paint metric
First Contentful Paint marks the time at which the first text or image is painted. Learn more about the First Contentful Paint metric
Does not have 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
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
First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful Paint metric
First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful Paint 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
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
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
Time to Interactive 0.4 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
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
Preload Largest Contentful Paint image
If the LCP element is dynamically added to the page, you should preload the image in order to improve LCP. Learn more about preloading LCP elements
If the LCP element is dynamically added to the page, you should preload the image in order to improve LCP. Learn more about preloading LCP elements
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
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
LCP request discovery
Optimize LCP by making the LCP image from the HTML immediately, and discoverable avoiding lazy-loading
Optimize LCP by making the LCP image from the HTML immediately, and discoverable avoiding lazy-loading
3rd parties
3rd party code can significantly impact load performance. to prioritize your page's content. Reduce and defer loading of 3rd party code
3rd party code can significantly impact load performance. to prioritize your page's content. Reduce and defer loading of 3rd party code
Render blocking requests
Requests are blocking the page's initial render, which may delay LCP. can move these network requests out of the critical path. Deferring or inlining
Requests are blocking the page's initial render, which may delay LCP. can move these network requests out of the critical path. Deferring or inlining
Speed Index 1.5 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more about the Speed Index metric
Speed Index shows how quickly the contents of a page are visibly populated. Learn more about the Speed Index 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
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
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 about optimal lazy loading
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint. Learn more about optimal lazy loading
Page Speed (Google PageSpeed Insights) - Mobile
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
Time To First Byte (TTFB)0
First Contentful Paint (FCP)0
First Input Delay (FID)0
Interactive To Next Paint (INP)0
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
Time To First Byte (TTFB)0
First Contentful Paint (FCP)0
First Input Delay (FID)0
Interactive To Next Paint (INP)0
Largest Contentful Paint (LCP)0
Lab Data
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
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
Minimize third-party usage
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading. Learn how to minimize third-party impact
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading. Learn how to minimize third-party impact
3rd parties
3rd party code can significantly impact load performance. to prioritize your page's content. Reduce and defer loading of 3rd party code
3rd party code can significantly impact load performance. to prioritize your page's content. Reduce and defer loading of 3rd party code
Speed Index 3.0 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more about the Speed Index metric
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
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
Legacy JavaScript
Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile features, unless you know you must support legacy browsers. Baseline Learn why most sites can deploy ES6+ code without transpiling
Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile features, unless you know you must support legacy browsers. Baseline Learn why most sites can deploy ES6+ code without transpiling
First Contentful Paint 1.4 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more about the First Contentful Paint metric
First Contentful Paint marks the time at which the first text or image is painted. Learn more about the First Contentful Paint metric
First Meaningful Paint
First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful Paint metric
First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful 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
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
Render blocking requests
Requests are blocking the page's initial render, which may delay LCP. can move these network requests out of the critical path. Deferring or inlining
Requests are blocking the page's initial render, which may delay LCP. can move these network requests out of the critical path. Deferring or inlining
Time to Interactive 1.4 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
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
Preload Largest Contentful Paint image
If the LCP element is dynamically added to the page, you should preload the image in order to improve LCP. Learn more about preloading LCP elements
If the LCP element is dynamically added to the page, you should preload the image in order to improve LCP. Learn more about preloading LCP elements
LCP request discovery
Optimize LCP by making the LCP image from the HTML immediately, and discoverable avoiding lazy-loading
Optimize LCP by making the LCP image from the HTML immediately, and discoverable avoiding lazy-loading
INP by phase
Start investigating with the longest phase. To reduce processing duration, , often JS. Delays can be minimized optimize the main-thread costs
Start investigating with the longest phase. To reduce processing duration, , often JS. Delays can be minimized optimize the main-thread costs
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
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
Duplicated JavaScript
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
Does not have 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
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 1.4 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more about the Largest Contentful Paint metric
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more about the Largest Contentful Paint metric
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 about optimal lazy loading
Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint. Learn more about optimal lazy loading
Does romankogan.net 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 romankogan.net are reduced by 53%.
romankogan.net use gzip compression.
Original size: 5.99 KB
Compressed size: 2.81 KB
File reduced by: 3.18 KB (53%)
Compressed size: 2.81 KB
File reduced by: 3.18 KB (53%)
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.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. romankogan.net supports HTTPS. romankogan.net supports HTTPS
Verifying SSL Support. Please wait...
Common Name: www.romankogan.net
Organization:
Location:
Issuer: R10
Valid from: Apr 24 10:33:20 2025 GMT
Valid until: Jul 23 10:33:19 2025 GMT
Authority: CA:FALSE
Keysize: 2048 Bits
Organization:
Location:
Issuer: R10
Valid from: Apr 24 10:33:20 2025 GMT
Valid until: Jul 23 10:33:19 2025 GMT
Authority: CA:FALSE
Keysize: 2048 Bits
Common Name: R10
Organization: Let's Encrypt
Location: US
Issuer: ISRG Root X1
Valid from: Mar 13 00:00:00 2024 GMT
Valid until: Mar 12 23:59:59 2027 GMT
Authority: CA:TRUE
Keysize: 2048 Bits
Organization: Let's Encrypt
Location: US
Issuer: ISRG Root X1
Valid from: Mar 13 00:00:00 2024 GMT
Valid until: Mar 12 23:59:59 2027 GMT
Authority: CA:TRUE
Keysize: 2048 Bits
Verify HTTP/2 Support ▼
HTTP/2 (Hypertext Transfer Protocol version 2) is a major revision of the HTTP protocol, which is the foundation of data communication on the World Wide Web. It was developed as an improvement over the previous HTTP/1.1 version to enhance web performance and efficiency. romankogan.net 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, 07 Jun 2025 11:42:44 GMT
server: nginx/1.25.5
content-type: text/html; charset=iso-8859-1
content-length: 210
location: http://romankogan.net/math
cache-control: max-age=7200
expires: Sat, 07 Jun 2025 12:22:30 GMT
x-server-cache: true
x-proxy-cache: HIT
host-header: c2hhcmVkLmJsdWVob3N0LmNvbQ==
HTTP/1.1 301 Moved Permanently
Date: Sat, 07 Jun 2025 11:42:44 GMT
Server: Apache
Location: https://romankogan.net/math
Content-Length: 235
Content-Type: text/html; charset=iso-8859-1
HTTP/2 301
date: Sat, 07 Jun 2025 11:42:45 GMT
server: nginx/1.25.5
content-type: text/html; charset=iso-8859-1
content-length: 236
location: https://romankogan.net/math/
cache-control: max-age=7200
expires: Sat, 07 Jun 2025 12:22:31 GMT
x-server-cache: true
x-proxy-cache: HIT
host-header: c2hhcmVkLmJsdWVob3N0LmNvbQ==
HTTP/2 200
date: Sat, 07 Jun 2025 11:42:45 GMT
server: nginx/1.25.5
content-type: text/html
content-length: 2879
last-modified: Fri, 07 Feb 2025 02:52:41 GMT
accept-ranges: bytes
cache-control: max-age=7200
expires: Sat, 07 Jun 2025 13:42:45 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: MISS
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 |
A | 162.241.218.115 | 14284 |
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 September 10, 2018 and will expire on September 10, 2025 if not renewed. This website is now assigned through the registrar Bluehost Inc.. The WHOIS data for this website's domain was last updated on September 10, 2024.- Domain Created:
- 2018-09-10
- Domain Expires:
- 2025-09-10
- Domain Updated:
- 2024-09-10
- Domain Age:
- 6 years 8 months 27 days
- Domain Registrar:
- Bluehost Inc.
- WhoIs:
Domain Name: ROMANKOGAN.NET Registry Domain ID: 2308633803_DOMAIN_NET-VRSN Registrar WHOIS Server: whois.fastdomain.com Registrar URL: https://www.bluehost.com Updated Date: 2024-09-10T08:49:32Z Creation Date: 2018-09-10T19:08:22Z Registry Expiry Date: 2025-09-10T19:08:22Z Registrar: Bluehost Inc. Registrar IANA ID: 1154 Registrar Abuse Contact Email:Registrar Abuse Contact Phone: +1.8777228662 Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited Name Server: NS1.BLUEHOST.COM Name Server: NS2.BLUEHOST.COM DNSSEC: unsigned URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/ >>> Last update of whois database: 2025-06-07T11:43:08Z