opk.co.jp website information.
opk.co.jp domain name is registered by .JP top-level domain registry. See the other sites registred in .JP domain zone.
Following name servers are specified for opk.co.jp domain:
- asns1.customer.ne.jp
- asns2.customer.ne.jp
and probably website opk.co.jp is hosted by FASTLY - Fastly, US web hosting company. Check the complete list of other most popular websites hosted by FASTLY - Fastly, US hosting company.
According to Alexa traffic rank the highest website opk.co.jp position was 25497 (in the world). The lowest Alexa rank position was 999731. Now website opk.co.jp ranked in Alexa database as number 824473 (in the world).
Website opk.co.jp Desktop speed measurement score (62/100) is better than the results of 38.44% of other sites shows that the page desktop performance can be improved.
opk.co.jp Mobile usability score (66/100) is better than the results of 14.96% of other sites and shows that the page mobile usability is poor and can be improved.
Mobile speed measurement score of opk.co.jp (56/100) is better than the results of 45.93% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
Weekly Rank Report
| Date | Rank | Change |
|---|---|---|
| Nov-26-2024 | 824,473 | 2,069 |
| Nov-25-2024 | 826,542 | 30,575 |
| Nov-24-2024 | 857,117 | 13,914 |
| Nov-23-2024 | 871,031 | -14,853 |
| Nov-22-2024 | 856,178 | -14,826 |
| Nov-21-2024 | 841,352 | 9,102 |
| Nov-20-2024 | 850,454 | -27,611 |
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opk.co.jp Rank History
Alexa can identify the popularity of a website as well as its competitors. It is important for website owners and bloggers to know their Alexa ranking because it shows how many visitors have viewed their web page. It gives them a clear idea of how popular their website is on the internet and the ranking of their competitors.
opk.co.jp whois
WHOIS is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system, but is also used for a wider range of other information.
opk.co.jp server information
opk.co.jp desktop page speed rank
Last tested: 2019-12-04
Desktop Speed
Bad
62/100
opk.co.jp Desktop Speed Test Quick Summary
priority - 25 Enable compression
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priority - 20 Leverage browser caching
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priority - 8 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 7 blocking script resources and 9 blocking CSS resources. This causes a delay in rendering your page.
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priority - 3 Minify CSS
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priority - 1 Minify JavaScript
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opk.co.jp Desktop Resources
| Total Resources | 51 |
| Number of Hosts | 4 |
| Static Resources | 43 |
| JavaScript Resources | 10 |
| CSS Resources | 11 |
opk.co.jp Desktop Resource Breakdown
opk.co.jp mobile page speed rank
Last tested: 2017-04-30
Mobile Speed
Bad
56/100
opk.co.jp Mobile Speed Test Quick Summary
priority - 40 Optimize images
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priority - 26 Leverage browser caching
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Leverage browser caching for the following cacheable resources:
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priority - 16 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 1 blocking script resources and 1 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
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Optimize CSS Delivery of the following:
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Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
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Compressing http://opk.co.jp/ could save 15.9KiB (68% reduction).
Compressing http://opk.co.jp/style.css could save 2KiB (71% reduction).
Compressing http://opk.co.jp/script.js could save 1.6KiB (66% reduction).
Compressing http://opk.co.jp/style.css could save 2KiB (71% reduction).
Compressing http://opk.co.jp/script.js could save 1.6KiB (66% reduction).
priority - 1 Minify HTML
Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
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Minifying http://opk.co.jp/ could save 14.1KiB (60% reduction).
priority - 0 Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
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Minifying http://opk.co.jp/style.css could save 939B (34% reduction).
opk.co.jp Mobile Resources
| Total Resources | 35 |
| Number of Hosts | 1 |
| Static Resources | 34 |
| JavaScript Resources | 1 |
| CSS Resources | 1 |
opk.co.jp Mobile Resource Breakdown
opk.co.jp mobile page usability
Last tested: 2017-04-30
Mobile Usability
Medium
66/100
opk.co.jp Mobile Usability Test Quick Summary
priority - 40 Use legible font sizes
The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.
The following text fragments have a small font size. Increase the font size to make them more legible.
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Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.
Configure a viewport for this page.
priority - 1 Size tap targets appropriately
Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.
The following tap targets are close to other nearby tap targets and may need additional spacing around them.
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<a href="./contact/index_en.html"></a> is close to 1 other tap targets.The tap target
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<a href="./img/Joyfum.pdf">「トレーニング用車いす Joyfum （ジョイフム）」</a> is close to 1 other tap targets.The tap target
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opk.co.jp Ping
Ping is a networking utility tool to test if a particular host is reachable. It is a diagnostic that checks reachability of a host on an Internet Protocol (IP) network. In a computer network, a ping test is a way of sending messages from one host to another. Aside from checking if the host is connected to a network, ping also gives indicators of the reliability and general speed of the connection.
opk.co.jp TRACEROUTE
Traceroute is a network diagnostic tool used to track the pathway taken by a packet on an IP network from source to destination. Traceroute also records the time taken for each hop the packet makes during its route to the destination. Traceroute uses ICMP (Internet Control Message Protocol) echo packets with variable time to live values. The response time of each hop is calculated. To guarantee accuracy, each hop is queried multiple times (usually three times) to better measure the response of that particular hop.