Isn't phone number is enough to buy or contact?
does we should provides our home address to our hosting site?

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Yes, it's a must!

If you don't display the actual physical address of your business, at least have your business mailing address on your website.

To me, and probably many others I'm sure, merchants/companies without some type of address are a big red flag and I would not do business with them, as they are usually up to no good.

I agree. Physical address is important on your website. It even confirms your existence.
But the real question here is : why do you want to hide it from your website ?

monhosteur some do that cause they don't come from a "well seen" and trustful country, so they have 2 choices: either write your address and be prepared to be avoided by some clients
or not write it and get avoided by other clients;
It's owners choice I guess ...

You should have the address of your data center and/or the address of your office. Not a "Home" address.

I've never thought of it like that, interesting. I can see why some clients would not do business with some countries, though. I for one, do not do business with anyone based/located in Iran..

I think a brick and mortar address significantly adds to the trust factor in know, like and trust.

Depending on where you live, there may be customer protection laws that require all distance selling providers to identify themselves completely (including address, registration numbers etc.) on your site.

You must have at least one business address on your website. It will show that you are a trustful person to make a business deal.

Physical address is important to be pasted on web site as it confirms that you are a genuine company to your visitors. Result will be a better trust.

Yes, it approves you're an actual company not "virtual". I think people will not purchase if they can't find such information.

"Hostloc", it is important but not mandatory. If you have live chat and telephonic support and provide them on your website.

Many customers will not look for physical address.

Yes, It is important. It ensure that you are not fake or you are a genuine person.

I would say it's necessary; besides, wouldn't it be on your invoices if it's not on your site? Pretty sure you must have it on your invoices for biz. tax. purposes.

It is a good idea to print your office physical location on the invoice, however it may not be mandatory as well.