Paste one published URL in Instagram Links
Open your profile, tap Edit profile, open Links, and add the address. Paste the full URL, starting with https. Put that link first so it is the one that shows under the bio. On Page, the address is https://yourspage.com/yourname, and other people can open it only after you publish.
The website lives under Links
The sentence under your name stays a sentence. The tappable address is a website you add under Links.
On the phone: open your profile, tap Edit profile, tap Links, tap Add link, paste the URL, and tap Done. Instagram’s Android help, at facebook.com/help/362497417173378, says you can add up to five websites, and that anyone can see them. To change the order, open Links, tap Options, then Reorder links, and drag. The same article’s computer page says the feature is not available on computers. If the button label has moved, you are still looking for Links under Edit profile.
Put this page first, so it is the one that shows in the bio. The address for that row is https://yourspage.com/yourname. One row can stand in for a shop, a song, and the other profiles, because those sit on the page. The same paste, for the other apps, is on where to paste it.

Paste the published https address
Paste the full address, including https://. https://yourspage.com/yourname is the shape. A string that starts with www, or one with a space or a line break in it, is a different string. Instagram opens what you saved.
Other people can open that address only after you publish. You can fill the draft before you pay. Publishing is $5.99 a month, $49 a year, or $149 once. The amounts are on pricing. A draft URL stays on your account.
The published URL opens this page. When you connect a hostname you already own, paste that hostname instead. SSL is included. You still pay the registrar. Until the DNS record verifies, the username URL is the one that already works. The record is on the custom domain page.

One title in Instagram, or a title on every link
Each website under Links has a title. That title is the label people read. Five websites means five titles kept inside Instagram.
One page needs one title in that list. The buttons on the page have their own labels, and you change those in the editor. https://yourspage.com/yourname is where a gallery link gets a new name without another trip through Edit profile.
A gallery, a date check, and an email are three titles if they are three websites. On one page they are three blocks, and Instagram stores one title. How a photographer orders those blocks is on the photographers page.

Two native links can be enough
Two destinations can stay as two websites. A shop you already run and a newsletter are a short list. Put the one you want opened first. Instagram’s help lets you reorder the list.
A page is the clearer paste when the list is the work. A single, the next show, and a shirt are a musician’s stack. This week’s video, a brand’s shop, and a code are an influencer’s stack. Those belong as blocks on https://yourspage.com/yourname, so the profile keeps one website and the page holds the rest. The musician order is on the musicians page. The influencer order is on the influencers page.
A discount block displays a code you type, and an optional URL. The shop still redeems the code. An event is a date, a title, a place, and a link. Booking stays on the site that link opens.

The first block is the tap you want
The first block is the tap you want this month. A heading can split the work from the rest. Social icons can sit up top when people ask for the other profiles. If one button matters more than the icons, that button still goes first.
On a music page, that block is the single. On a photo page, it is the date check. A few published pages are linked from the homepage examples.
You set that order on https://yourspage.com/yourname once. Every profile that points here picks it up. You paste the URL yourself. Page does not post to Instagram, and it does not schedule posts. Where the URL goes in each app is on the share page.

Views, the block, and the referrer
Instagram does not name the person who tapped the website. The report does not name them either. After you publish, it shows views, clicks on each block, and referrers. A referrer is where the visit started, when that source comes through.
The report on the published page is where you see which block was tapped. Country, device, and the rest of the fields are on the analytics page. A tap on a shop link is a click. The sale stays on the shop.

If the address does not open
If the link does not open, check the string before you edit the profile again. It starts with https://. There is no space at either end, and no line break in the middle. The same address opens in a phone browser, outside Instagram.
If a browser cannot open the address, the page is still a draft, or the username in the path is wrong. Publish, then open the same address again. If the browser opens it and Instagram does not, remove the link and add it again from Edit profile, then Links. Instagram’s Android help says you remove a link by tapping it and choosing Remove link.
Open https://yourspage.com/yourname in a browser the day you publish. That username URL is the one to paste while a hostname you own is still verifying. A custom domain that has not finished DNS will not open yet. SSL is included once it does. You still pay the registrar.

Questions
Can the same URL go on TikTok, X, and a site I already have?
Yes. Paste https://yourspage.com/yourname into each website field yourself, including TikTok, X, YouTube, LinkedIn, GitHub, and a site you already run. Page does not post the page to Instagram for you, and it does not schedule posts.
Is publishing the page free?
No. You can build the draft before you pay. Other people can open the URL only after you publish. Publishing is $5.99 a month, $49 a year, or $149 once.
Does the sentence in the bio become the link?
The sentence under your name stays a sentence. The tappable address is a website you add under Links. Put this page first so it is the one that shows in the bio.
What if the button does not say Add link?
Stay in Edit profile, then Links. Instagram’s Android help uses Add link, and it says you can add up to five websites. The label can move. You are still adding an external website, then putting this page first. The computer version of that help page says the feature is not available on computers.
Will the report name the person who tapped?
No. Instagram does not name that person, and the report does not either. After you publish, you get views, clicks per block, and referrers.