I tried the solution with config.cfg.
It works approximately:
The anchor seems to be set a bit late
and so the headline is cut off.

The other solution works very well for me.

I found another one,
https://tex.stackexchange.com/questions/260932/destlabel-option-of-the-hyperref-package-does-not-work-in-combination-with-htlat
also from you.
I dont like as much as the above, because filtering makes the thing slower.

Still I think all these are kind of workarounds:
hyperref is the way links are added to PDF
but HTML came with links from the very beginning.

I think,

```
\usepackage[destlabels, tex4ht]{hyperref}
```

shall work in a way, that `test.pdf#label` can be just replaced by `test.html#label`.
Maybe your solution with the config file
can be corrected a bit that the placement is more precise
and is automatted if `destlabels` is used in conjunction with `tex4ht`.

This would be very good.
Then also it is not important whether one uses make4ht or htlatex.

First of all, thank you a lot for your quick reply!

One thing I don't understand:

```
You can try something like this:
%%%%%%%%%%%%%%%%%%%
\Preamble{xhtml}
\let\origlabel\label
\def\label#1{%
\HCode{<span id="#1">}%
\origlabel{#1}%
\HCode{</span>}%
}
\begin{document}
\EndPreamble
%%%%%%%%%%%%%%%%%%%
```

Where shall I add this? in the source?
Please explain ....

I create html from latex with
htlatex
tex4htStyOptions xhtml,uni-html4,2,svg,pic-tabular
tex4htOptions ’ -cunihtf -utf8’
t4htOptions the empty string

The latex file has in header
`\usepackage[tex4ht,destlabel]{hyperref}`
and has a section

```
\section{Exporting in various formats}\label{sec:stableUsage}
```

As a result, I obtain a html file
with following headline

```
<h3 class="sectionHead"><span class="titlemark">3.2</span>
<a id="x8-130003.2"></a>Exporting in various formats</h3>
```

Here, the label in the latex source does not occur.
Instead there is a generated label which may change,
e.g. when inserting another section.

When referencing this, it reads in the output

```
included and a Section&#x00A0;<a
href="#x8-130003.2">3.2<!--tex4ht:ref: sec:stableUsage --></a>
```
and here, the label `sec:stableUsage` occurs,
i.e. it is know, but it occurs only as a comment.

I would expect, that there are two anchors,
one with generated id and an other one with id
taken from the label in the source.

I think, i cannot use the reference `file.html#x8-130003.2`
because it is not stable.
I could use `file.html#sec:stableUsage`.