Topic: Bitcoin price calculator - Calculate live and historic Bitcoin prices (Read 773 times)

I upgraded the performance of the website.

This will come in handy especially now since preev.com has been down for some time already. I tried to see if I can reproduce the display glitch dkbit98 mentioned even if he says it was fixed, but it seems to be working just fine both on Firefox and Chrome. Switching between the charts does require a bit of loading time, especially if you click on the "1Year" or "All" buttons, but it's not too much of an issue.

Where do you get your historical data from? Does the site display the lowest, highest, or a middle value for that day?

Last time I tried it in several different browsers like Librewolf (fork of Firefox with custom settings), Firefox and Chromium with default settings plus uBlockOrigin, and I was getting the exact same issues.
However, I just checked your website again and it's working perfectly normal, loading all charts, so it must have been some temporary glitch.

I tried to re-produce the bug and found an issue with Firefox when the referrer headers are disabled in-combination with Chart.js.

Are you using Firefox, if so can you check if you disabled referrer headers?

I have a question, or maybe I noticed one bug on your website.
When I open it, page loads and it shows current market value of Bitcoin in USD with chart, but when I switch to any other currency (eur, chf, pound, etc) or when I click back to USD, there is no more chart.
If I want to get back chart I need to click below on buttons for 1D, 1W, 1M, etc.
Maybe this is made by design, but I would like to see automatic loading of charts with all currencies.

I added the Bitcoin price in Swiss franc.

What do you think of the new design and functionality?

I thought about the advise and came up with a redesign of the website and I added more currencies.

Nice work! Website loads very quickly!

Everyone mentioned Preev but somehow no one has suggested for you to add these units:
mBTC = 0.001 BTC
uBTC = 0.000001 BTC
satoshi = 0.00000001 BTC

Almost 9 months have passed since you launched this website, so, I assume you are passionate around this project and I truly advice you to focus your attention on the design. You need to change the colors, put some sections in better areas.
Make your website more mobile-friendly, I can load Bitcoin to USD Chart on PC but it feels seriously uncomfortable when I run on my iPhone while coinmarketcap.com's chart works like a charm.

Cheers   

I've always pointed people to Preev, as I think many would have. However, I quite like the implementation of the basic historical data. Something which I believe would be beneficial to new users who might want to see how far we've come.

If I had one suggestion, and I touched upon it below in my response to hugeblack. Keep it simple. Don't look to compete on all fronts, and make the site messy. Preev was successful, and is the go to choice because of its simplicity, and clean design. I the site is perfect how it is, and if you were to look at adding other data, I would suggest doing it on its own pages, and keeping that landing page as clean as possible.

I guess the only other suggestion would be to look at adding more currencies to compare to. Although, you've satisfied some of the larger populations already. For me, that's the only place that Preev currently beats you in, and maybe they have a bit better interface in terms of simplicity.

I know this has already been addressed now as the suggestion was made a long time ago, but I quite like basic sites though. I hate when sites try to compete on all fronts, and ultimately end up messy. Personally, I would have set up the website a little differently, so I would have had the charts higher up on the page, and the rest of the information below it. Other than that, adding your suggestions might just lead to a messy site. I think, your suggestions are good, but I think if they were to be added they should be added to their own page, and keep the landing page relatively simple.

I adjusted the currency format notation for euro's and dollars in the calculator.

Example:

euro's: 36.977,36
dollars: 38,581.14

I added a share link that includes the selected currency and date.

I did a security scan of your website and you did great!

You had zero outdated libraries, great CDN usage, and all around, you did a great job on maintaining security for you, and your users!

Suiggest :

• Provide the Link / Export

Info : for example i want proof or show someone about the date , i provide a link from your site :
for example a button like Generate Link or ...

Sample Link : https://bitcoinpricecalc.com/xun3s
or Another : https://bitcoinpricecalc.com/20210703

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there was another one .... i already forget about it

I changed the timestamp format to UTC.

If you ask for it, you get it 
Nothing big, still...

I've looked at your API. I think that the date and timestamp used in requests/responses would be better to be UTC, so one doesn't have to guess your timezone and DST dates.
Also, if people will start using your API, you may have to restrict the number of calls/minute so you don't get flooded.

Does anyone have new suggestions? 

I updated the layout of the website and fixed a small mobile issues with the chart.

I agree about the whitespace.

I removed a lot of the whitespace by pulling the introduction more to the top.

It should be much bigger than this and there is still a lot of empty space on home page, but that is just my opinion, so you can ask other people for feedback.
Maybe something like this I posted below or play around more with colors and size.

  vs 
                               original                                                                                        my quick suggestion