Look through the key statistics analysis before diving in deeper into our report:
| Parameter | Current result | Assessment |
|---|---|---|
| Meta title | Home | seL4 | As meta title is a ranking factor, it's quite important to stick to search engine recommended length of aroun 50-60 characters. This website's meta title is 11 characters long. |
| Description | A description has not been provided for this site. | This meta description is 50 characters in length. Google suggests up to 320 characters at the very most to make sure the whole meta description is visible in search results page. |
| Site speed | Around 0.9528 seconds | The website load speed is rather good. |
| Alexa global rank | 855730, as last checked | Based on Alexa Global, we can assume the website is not very popular. Mind you, Alexa's worth is questionable at best. |
| Links on homepage | Around 43 links | This is a well-judged amount of links for a homepage. |
| Backlinks amount | Approximately 48 | The number of backlinks seems awfully low. If possible, the webmaster should work towards building more through quality content and public awareness. |
| HTML size | 7.4KB | A very good result, this. Remember, search engines such as Google place a lot of their website ratings on its speed. |
| Website host server overview | Server status: online. Server IP address for this website is 221.199.209.21. | We apologize, but for some reason we were unable to gather enough data to provide a detailed insight at this time. |
If the basic information we presented you with above is not enough, get ready to dive in much deeper!
Now that the numbers are taken care of, we can go deeper and try to analyse the website from a user's perspective. More specifically, let's see if we can identify the target audience as well as a few related websites and categories.
| Parameter | Current result | Assessment |
|---|---|---|
| Alternative websites | l4hq.org microkernel.info microkerneldude.wordpress.com genode.org data61.csiro.au |
These websites fall into the same categories as sel4.systems, more or less. By extension, they compete with the analysed website for the same target audience. |
Trying to acquire very accurate visitor data is immensely difficult and can only be done when given direct access to the server. However, there are ways to get approximate numbers.
The numbers themselves probably say enough, but we'll add some insight where possible.
| Parameter | Current result | Assessment |
|---|---|---|
| Approximate time on site | 2:28 | Pretty good for an average time spent, wouldn't you say? |
ALEXA rating is based on the number of visitors a given page receives. The higher the visitor count, the higher the rating. Currently, ALEXA has over 4 million websites indexed. If you sense cynicism in our words, you're not mistaken - we think Alexa rating is overrated, to put it mildly. A website's worth (and contextual popularity) is more than the sum of the views. So take the rank with a grain of salt.
Servers are physical storage devices that contain all the files and databases associated with a specific website, sometimes more than one. At times, a server makes up several virtual devices - separate servers used for shared hosting (tends to be cheaper). Entering website address into the address bar of your browser starts the request process during which your browser contacts the server and asks for specific files and database entries in order to display the requested website.
What follows is certainly very geeky, but informative for the knowing. Dig in:
| Header detail |
|---|
HTTP/1.1 200 OK Server: nginx/1.2.1 Date: Fri, 30 Jun 2017 04:24:35 GMT Content-Type: text/html; charset=UTF-8 Transfer-Encoding: chunked Connection: keep-alive Vary: Accept-Encoding |
| WHOIS |
|---|
Domain Name: sel4.systems Registry Domain ID: 1929fc81be2f4d76a6a29f3cc8d42132-DONUTS Registrar WHOIS Server: www.gandi.net/whois Registrar URL: https://www.gandi.net Updated Date: 2017-04-02T23:42:07Z Creation Date: 2014-03-19T16:00:46Z Registry Expiry Date: 2018-03-19T16:00:46Z Registrar: Gandi SAS Registrar IANA ID: 81 Registrar Abuse Contact Email: Registrar Abuse Contact Phone: +33.170377661 Domain Status: ok https://icann.org/epp#ok Registry Registrant ID: 832d347111a743e984a80f91c3032504-DONUTS Registrant Name: Gernot Heiser Registrant Organization: School of Computer Science & Engineering Registrant Street: Level 3, K17 Building Registrant City: UNSW Sydney Registrant State/Province: NSW Registrant Postal Code: 2052 Registrant Country: AU Registrant Phone: +61.294905850 Registrant Phone Ext: Registrant Fax: Registrant Fax Ext: Registrant Email: Registry Admin ID: bc7a42ad5437494890b96761c0c29600-DONUTS Admin Name: PETER CHUBB Admin Organization: Data61, CSIRO Admin Street: Obfuscated whois Gandi-63-65 boulevard Massena Admin City: Obfuscated whois Gandi-Paris Admin State/Province: Paris Admin Postal Code: 75013 Admin Country: FR Admin Phone: +33.170377666 Admin Phone Ext: Admin Fax: +33.143730576 Admin Fax Ext: Admin Email: Registry Tech ID: 832d347111a743e984a80f91c3032504-DONUTS Tech Name: Gernot Heiser Tech Organization: School of Computer Science & Engineering Tech Street: Level 3, K17 Building Tech City: UNSW Sydney Tech State/Province: NSW Tech Postal Code: 2052 Tech Country: AU Tech Phone: +61.294905850 Tech Phone Ext: Tech Fax: Tech Fax Ext: Tech Email: Name Server: b.dns.gandi.net Name Server: a.dns.gandi.net Name Server: c.dns.gandi.net DNSSEC: unsigned URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/ >>> Last update of WHOIS database: 2017-05-23T01:56:00Z <<< For more information on Whois status codes, please visit https://icann.org/epp Terms of Use: Users accessing the Donuts WHOIS service must agree to use the data only for lawful purposes, and under under no circumstances use the data to: Allow, enable, or otherwise support the transmission by e-mail, telephone, or facsimile of mass unsolicited, commercial advertising or solicitations to entities other than the registrar's own existing customers. Enable high volume, automated, electronic processes that send queries or data to the systems of Donuts or any ICANN-accredited registrar, except as reasonably necessary to register domain names or modify existing registrations. When using the Donuts Whois service, please consider the following: The Whois service is not a replacement for standard EPP commands to the SRS service. Whois is not considered authoritative for registered domain objects. The Whois service may be scheduled for downtime during production or OT&E maintenance periods. Queries to the Whois services are throttled. If too many queries are received from a single IP address within a specified time, the service will begin to reject further queries for a period of time to prevent disruption of Whois service access. |
Now that you are hopefully done with sel4.systems, we invite you to read more of our in-depth reports. Try entering a new domain address in the search form at the top of this page, or on the homepage. Alternatively, refer to this list for more website overviews:
We have found so many alternative TLD extensions for sel4.systems. Here is the full list with 580 entries:
The following list of most frequent domain address mistypes associated with sel4.systems contains at least 1156 entries: