rkdelft.nl Rkdelft.nl

   
Ursula parochie Delft

Domain Summary

What is the traffic rank for Rkdelft.nl?

• Rkdelft.nl ranks #4,547,916 globally on HypeStat.

What percent of global Internet users visit Rkdelft.nl?

4.0E-6% of global Internet users visit Rkdelft.nl

How many people visit Rkdelft.nl each day?

• Rkdelft.nl receives approximately 197 visitors and 350 page impressions per day.

How much Rkdelft.nl can earn?

• Rkdelft.nl should earn about $1.43/day from advertising revenue.

What is Rkdelft.nl estimated value?

• Estimated value of Rkdelft.nl is $1,391.89.

What IP addresses does Rkdelft.nl resolve to?

• Rkdelft.nl resolves to the IP addresses 2a02:830:1:2::68:96, 212.61.68.96.

Where are Rkdelft.nl servers located in?

• Rkdelft.nl has servers located in Eindhoven, North Brabant, 5612, Netherlands.

rkdelft.nl Profile

Title:Ursula parochie Delft
Description:Vier katholieke kerken in Delft gaan met de heilige Ursula onderweg. En ze nemen mee; hun pastores, zangers, lieve helpers. Ook jij bent van harte welkom.
Tags:
About: RK Delft is the official website of RKDEO, a professional football club based in Delft, Netherlands. It provides information about the team, its players, coaches, history, and upcoming events. It also offers news and updates, match information, ticket sales, fan shop, and more.
*This text is generated by artificial intelligence and may not be accurate. Edit Site Info

What technologies does rkdelft.nl use?

These are the technologies used at rkdelft.nl. rkdelft.nl has a total of 6 technologies installed in 6 different categories.

rkdelft.nl Traffic Analysis

Rkdelft.nl is ranked #4,547,916 in the world. This website is viewed by an estimated 197 visitors daily, generating a total of 350 pageviews. This equates to about 6K monthly visitors. Rkdelft.nl traffic has increased by 2647.2% compared to last month.
Daily Visitors197
2647.2%
Monthly Visits6K
2647.2%
Pages per Visit1.78
50%
Visit duration01:08
Bounce Rate81.66%
50%
Is this your site?Verify your site's metrics.
Daily Unique Visitors:
197
Monthly Visits:
5,969
Pages per Visit:
1.78
Daily Pageviews:
350
Avg. visit duration:
01:08
Bounce rate:
81.66%
Global Reach:
4.0E-6%
Monthly Visits (SEMrush):
15,714
Monthly Unique Visitors (SEMrush):
15,714
Monthly Visits (SimilarWeb):
5,971
HypeRank:
4,547,916
SEMrush Rank:
38,746,089
SimilarWeb Rank:
4,511,715
*All traffic values are estimates only.

Traffic sources

Direct:
50.00%
Referral:
0%
Search:
100.00%
Social:
50.00%
Paid:
0%

Desktop vs Mobile

Desktop:
100.00%
Mobile:
100.00%

Total Visits Last 3 Months

1.4K
JAN
217.3
FEB
6K
MAR
Last update was 673 days ago
     
This can take up to 60 seconds. Please wait...

*HypeStat.com is not promoting or affiliated with rkdelft.nl 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:
173
Bing Index:
4

Moz Data

Domain Authority (DA) is a metric developed by Moz. DA is a score that predicts the ranking potential of a website on search engine result pages (SERPs). Moz calculates Domain Authority on a logarithmic scale from 1 to 100, with higher scores indicating a greater likelihood of ranking well in search results. Moz Domain Authority of rkdelft.nl is 28.
Domain Authority:
  28
Page Authority:
  28
MozRank:
  3

 

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:
  rkdelft.nl
Rank:
(Rank based on keywords, cost and organic traffic)
  38,746,089
Organic Keywords:
(Number of keywords in top 20 Google SERP)
  1
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 $1.4 per day if the source of income were advertisements, which equates to an estimated monthly revenue of $42.9 and annual gross revenue of approximately $522. Based on these figures, the site's net worth is estimated at around $1.4K.

How much would rkdelft.nl make?

Daily Revenue:
$1.43
Monthly Revenue:
$42.90
Yearly Revenue:
$521.95
*All earnings values are estimates only.

How much is rkdelft.nl worth?

Website Value:
$1.4K

Ad Experience Report

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

Mobile summary

Root domain:
rkdelft.nl
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:
rkdelft.nl
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:
rkdelft.nl
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 rkdelft.nl hosted?

Rkdelft.nl may be hosted in multiple data centers distributed in different locations around the world. This is probably just one of them.
Server IP:
2a02:830:1:2::68:96, 212.61.68.96
ASN:
AS8426 
ISP:
Claranet Ltd 
Server Location:
Eindhoven
North Brabant, NB
5612
Netherlands, NL
 

Other sites hosted on 212.61.68.96

How fast does rkdelft.nl load?

The average loading time of rkdelft.nl is 949 ms. The Desktop speed index is 71 and mobile speed index is 54.
Average Load Time:
949 ms

Page Speed (Google PageSpeed Insights) - Desktop

71
0-49 50-89 90-100 i

Field Data

Over the last 30 days, the field data shows that this page has a SLOW 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)93ms 5% of loads for this page have a fast (<0.01s) Cumulative Layout Shift (CLS) 5% 6% of loads for this page have an average (0.01s ~ 0.025s) Cumulative Layout Shift (CLS) 6% 87% of loads for this page have a slow (>0.025s) Cumulative Layout Shift (CLS) 87%
Time To First Byte (TTFB)589ms 85% of loads for this page have a fast (<0.8s) Time To First Byte (TTFB) 85% 9% of loads for this page have an average (0.8s ~ 1.8s) Time To First Byte (TTFB) 9% 5% of loads for this page have a slow (>1.8s) Time To First Byte (TTFB) 5%
First Contentful Paint (FCP)1.2s 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% 6% of loads for this page have a slow (>3s) First Contentful Paint (FCP) 6%
First Input Delay (FID)3ms 99% of loads for this page have a fast (<100ms) First Input Delay (FID) 99% 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)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)1.6s 85% of loads for this page have a fast (<2500ms) Largest Contentful Paint (LCP) 85% 7% of loads for this page have an average (2500ms ~ 4000ms) Largest Contentful Paint (LCP) 7% 7% of loads for this page have a slow (>4000ms) Largest Contentful Paint (LCP) 7%

Origin Data

All pages served from this origin have an SLOW 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)93ms 5% of loads for this page have a fast (<0.01s) Cumulative Layout Shift (CLS) 5% 6% of loads for this page have an average (0.01s ~ 0.025s) Cumulative Layout Shift (CLS) 6% 87% of loads for this page have a slow (>0.025s) Cumulative Layout Shift (CLS) 87%
Time To First Byte (TTFB)589ms 85% of loads for this page have a fast (<0.8s) Time To First Byte (TTFB) 85% 9% of loads for this page have an average (0.8s ~ 1.8s) Time To First Byte (TTFB) 9% 5% of loads for this page have a slow (>1.8s) Time To First Byte (TTFB) 5%
First Contentful Paint (FCP)1.2s 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% 6% of loads for this page have a slow (>3s) First Contentful Paint (FCP) 6%
First Input Delay (FID)3ms 99% of loads for this page have a fast (<100ms) First Input Delay (FID) 99% 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)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)1.6s 85% of loads for this page have a fast (<2500ms) Largest Contentful Paint (LCP) 85% 7% of loads for this page have an average (2500ms ~ 4000ms) Largest Contentful Paint (LCP) 7% 7% of loads for this page have a slow (>4000ms) Largest Contentful Paint (LCP) 7%

Lab Data

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
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
Performance budget  
Keep the quantity and size of network requests under the targets set by the provided performance budget. Learn more about performance budgets
Largest Contentful Paint 1.5 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more about the Largest Contentful Paint metric
Time to Interactive 0.8 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 Meaningful Paint 0.8 s
First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful Paint 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
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
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
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
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

Page Speed (Google PageSpeed Insights) - Mobile

54
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)16ms 5% of loads for this page have a fast (<0.01s) Cumulative Layout Shift (CLS) 73% 1% of loads for this page have an average (0.01s ~ 0.025s) Cumulative Layout Shift (CLS) 1% 24% of loads for this page have a slow (>0.025s) Cumulative Layout Shift (CLS) 24%
Time To First Byte (TTFB)558ms 85% of loads for this page have a fast (<800s) Time To First Byte (TTFB) 92% 4% of loads for this page have an average (800s ~ 1800s) Time To First Byte (TTFB) 4% 2% of loads for this page have a slow (>1800s) Time To First Byte (TTFB) 2%
First Contentful Paint (FCP)1.1s 86% of loads for this page have a fast (<1.8s) First Contentful Paint (FCP) 94% 3% of loads for this page have an average (1.8s ~ 3s) First Contentful Paint (FCP) 3% 1% of loads for this page have a slow (>3s) First Contentful Paint (FCP) 1%
First Input Delay (FID)16ms 98% of loads for this page have a fast (<100ms) First Input Delay (FID) 98% 1% of loads for this page have an average (100ms ~ 300ms) First Input Delay (FID) 1% 0% of loads for this page have a slow (>300ms) 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)1.5s 85% of loads for this page have a fast (<2500s) Largest Contentful Paint (LCP) 95% 3% of loads for this page have an average (2500s ~ 4000s) Largest Contentful Paint (LCP) 3% 1% of loads for this page have a slow (>4000s) 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)19ms 73% of loads for this page have a fast (<0.01s) Cumulative Layout Shift (CLS) 73% 4% of loads for this page have an average (0.01s ~ 0.025s) Cumulative Layout Shift (CLS) 4% 22% of loads for this page have a slow (>0.025s) Cumulative Layout Shift (CLS) 22%
Time To First Byte (TTFB)562ms 91% of loads for this page have a fast (<0.8s) Time To First Byte (TTFB) 91% 6% of loads for this page have an average (0.8s ~ 1.8s) Time To First Byte (TTFB) 6% 2% of loads for this page have a slow (>1.8s) Time To First Byte (TTFB) 2%
First Contentful Paint (FCP)1.1s 93% of loads for this page have a fast (<1.8s) First Contentful Paint (FCP) 93% 4% of loads for this page have an average (1.8s ~ 3s) First Contentful Paint (FCP) 4% 2% of loads for this page have a slow (>3s) First Contentful Paint (FCP) 2%
First Input Delay (FID)15ms 99% of loads for this page have a fast (<100ms) First Input Delay (FID) 97% 2% of loads for this page have an average 100ms ~ 300ms) First Input Delay (FID) 2% 0% of loads for this page have a slow (>300ms) 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)1.6s 93% of loads for this page have a fast (<2.5s)Largest Contentful Paint (LCP) 93% 4% of loads for this page have an average (2.5s ~ 4s)Largest Contentful Paint (LCP) 4% 2% of loads for this page have a slow (>4s)Largest Contentful Paint (LCP) 2%

Lab Data

Total Blocking Time 20 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
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 2.6 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more about the First Contentful Paint metric
Speed Index 4.4 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more about the Speed Index 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
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
Max Potential First Input Delay 80 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 6.2 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more about the Largest Contentful Paint metric
Time to Interactive 2.7 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
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
First Meaningful Paint 2.6 s
First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful Paint metric

Does rkdelft.nl 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 rkdelft.nl are reduced by 84%.
rkdelft.nl use gzip compression.
Original size: 36.78 KB
Compressed size: 5.6 KB
File reduced by: 31.17 KB (84%)

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. rkdelft.nl has 61 Safety Reputations.
Status:
  UNKNOWN
Safety Reputations:
  61
Safety Confidence:
  3

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. rkdelft.nl supports HTTPS.
 rkdelft.nl supports HTTPS
     
Verifying SSL Support. Please wait...
Common Name: www.rkdelft.nl
Organization:
Location:
Issuer: Sectigo RSA Domain Validation Secure Server CA
Valid from: Apr 3 00:00:00 2023 GMT
Valid until: Apr 3 23:59:59 2024 GMT
Authority: CA:FALSE
Keysize: 2048 Bits
Common Name: Sectigo RSA Domain Validation Secure Server CA
Organization: Sectigo Limited
Location: Salford, Greater Manchester, GB
Issuer: USERTrust RSA Certification Authority
Valid from: Nov 2 00:00:00 2018 GMT
Valid until: Dec 31 23:59:59 2030 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.
 rkdelft.nl 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: Mon, 01 May 2023 20:00:51 GMT
server: Apache
strict-transport-security: max-age=31536000; includeSubDomains;
x-frame-options: SAMEORIGIN
referrer-policy: 
location: https://www.rkdelft.nl/
cache-control: max-age=0
expires: Mon, 01 May 2023 20:00:51 GMT
content-length: 231
content-type: text/html; charset=iso-8859-1

HTTP/2 200 
date: Mon, 01 May 2023 20:00:51 GMT
server: Apache
expires: Wed, 17 Aug 2005 00:00:00 GMT
cache-control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
pragma: no-cache
set-cookie: fb759f18b32d4d163a6a4f777feef95f=cpfmkgl06qaacu27cl4e8drh1m; path=/; HttpOnly
strict-transport-security: max-age=31536000; includeSubDomains;
x-frame-options: SAMEORIGIN
referrer-policy: 
last-modified: Mon, 01 May 2023 20:00:52 GMT
vary: Accept-Encoding,User-Agent
content-encoding: gzip
x-content-type-options: nosniff
x-xss-protection: 1; mode=block
referrer-policy: no-referrer-when-downgrade
content-security-policy: default-src 'self' data: 'unsafe-inline' *.google-analytics.com *.googleapis.com google.com google.nl *.gstatic.com 'unsafe-eval' *.jquery.com www.youtube-nocookie.com play.google.com; img-src *; font-src *; media-src 'self' *.youtube.com *.youtube-nocookie.com; object-src 'self' *.youtube.com *.youtube-nocookie.com *.googlevideo.com *.ytimg.com; frame-src 'self' *.youtube.com *.youtube-nocookie.com *.openstreetmap.org
content-length: 5738
content-type: text/html; charset=utf-8

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
AAAA 2a02:830:1:2::68:96 3600
TXT v=spf1 ip4:45.82.188.97 ip4:83.137.145.97 include:spf.webreus.email include:spf.provalue.nl ~all 3600
MX mx-in-2.webreus.nl 600
MX mx-in-3.webreus.nl 600
MX mx-in-4.webreus.nl 600
MX mx-in-1.webreus.nl 600
SOA 3600
Mname ns10.webreus.net
Rname zonemaster.rkdelft.nl
Serial Number 2023011601
Refresh 10800
Retry 3600
Expire 604800
Minimum TTL 3600
A 212.61.68.96 3600
NS ns10.webreus.net 3538
NS ns11.webreus.net 3538

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 March 13, 2008 and will expire on March 5, 2025 if not renewed. This website is now assigned through the registrar WebReus. The WHOIS data for this website's domain was last updated on April 5, 2022.
Domain Created:
2008-03-13
Domain Updated:
2022-04-05
Domain Age:
16 years 23 days
Domain Registrar:
WebReus
WhoIs:
 

Domain name: rkdelft.nl
Status:      active

Registrar:
   WebReus
   Beemdstraat 14
   5652AB EINDHOVEN
   Netherlands

Abuse Contact:

Creation Date: 2008-03-13

Updated Date: 2022-04-05

DNSSEC:      yes

Domain nameservers:
   ns10.webreus.net
   ns11.webreus.net

Record maintained by: SIDN BV

Copyright notice
No part of this publication may be reproduced, published, stored in a
retrieval system, or transmitted, in any form or by any means,
electronic, mechanical, recording, or otherwise, without prior
permission of SIDN.
These restrictions apply equally to registrars, except in that
reproductions and publications are permitted insofar as they are
reasonable, necessary and solely in the context of the registration
activities referred to in the General Terms and Conditions for .nl
Registrars.
Any use of this material for advertising, targeting commercial offers or
similar activities is explicitly forbidden and liable to result in legal
action. Anyone who is aware or suspects that such activities are taking
place is asked to inform SIDN.
(c) SIDN BV, Dutch Copyright Act, protection of authors' rights
(Section 10, subsection 1, clause 1).