Y’know, when I saw the word “useful” in the subject header I naively and idealistically thought this would be a question about whether it’s useful for the human user. (The answer in that case would be: Can’t hurt--but with less than 100 pages it shouldn’t be necessary, so maybe the site navigation needs an overhaul.)

:: wandering off sobbing brokenly ::

Peace first.

Then, the answer is "no".

You already have a sitemap, so Robots can discover all your pages, if they want to.

What is more valuable, is to have a good flow in the navigation within the site.

linking to the html sitemap can't hurt but i'm not sure how it would help live visitors or search engines unless your site navigation is insufficient to reach each of the <100 urls in a couple/few clicks or less.

submitting the xml sitemap should more than suffice for SEO/discovery purposes.

Thank all for your reply, i appreciated a lot!
Effectively my question was in a SEO goal but of course human user is important,)
Maybe i am wrong I got in mind than the fact there is link to my sitemap on all my page the robot will crawl more my website? This is just broscience jaja?


PS : Sorry for my english this is not my native language!

Any link that is visible to a human is visible to a search-engine robot. (The opposite is not true; you can make links that are only visible to robots*. But do not use them for SEO purposes.) Not just ordinary <a href> HTML links, but ones buried in javascript.

* and to extra-sneaky humans who snoop into your Page Source.

This is just broscience jaja?


PS : Sorry for my english this is not my native language!

no, you've got this.
thanks for adding to my vocabulary.

Just a remark on my experience: I have never had a sitemap on one site and do not intend to use one, ever. So far no problems. However, for some clients insisting on sitemaps there have been issues which are traceable to the sitemap, usually when the client fiddles and "updates"... too many cooks in the broth?

YMMV

The logic has never made sense to me; you have a page with a bunch of links, great. But doesn't your page already have those same links?

It makes sense if your navigation is in JavaScript or something that makes it hard for search engines to read, but otherwise it never made sense.

My sites have literally millions of links and they've all been spidered by Google, so I've never even considered making a site map.

Just for info the page of my sitemap according to my google search console say :
"Detected, currently not indexed"
I don't know/can't draw any conclusion,)
A hypothesis is that this page was not useful to him, therefore not indexed?

PS : Sorry for my english this is not my native language!

A hypothesis is that this page was not useful to him, therefore not indexed?

I cannot think of any real world search for which Google would conclude that the best page to show is a site map. A map is used to find the place (or page in case of a site map) you are looking for, it does the same thing Google does. In other words, If Google starts sending users to your site map then you have a really big problem, that the site map wont fix.

If you want to go through the trouble of making a site-map, great, it certainly wont harm anything (I doubt it will help or ever be used), but do yourself a favor add a "no-index" tag to the page.

I know a whole bunch of really good agency seo's that are dumping sitemaps all together. Turn them on - turn them off - no appreciable difference in indexing.