Monitoring Home NAS availability by HTML Scrape

Configuration
1

Hello All,

Im trying to monitor my home NAS server which is publicly avaible but hided behind he cloudflare tunnel.
Obviously simple ping will not gona work so I tried to monitor based on recived HTML which is different when NAS is online (when offline, cloudflare sending the error page)

I tried both: native Home Assistant Scrape integration and HACS Multiscrape: nothing worked.
I do not know what Im doing wrong. I tried many different URL, selectors and value_template
HTML is simple:
image

Here is one of many examples which I tried (using multiscrape):

- name: HA scraper
  resource: https://files.amadeuszjakobczak.pl/login?redirect=%2Ffiles%2F
  scan_interval: 10
  sensor:
    - unique_id: NAS-TEST6
      name: NAS-TEST6
      select: "#login"
      value_template: '{{ "available" if value else "unavailable" }}'
    - unique_id: NAS-TEST5
      name: NAS-TEST5
      select: "#login"
      value_template: '{{ value }}'

I tried:
resource:
https://files.amadeuszjakobczak.pl
http://files.amadeuszjakobczak.pl
https://files.amadeuszjakobczak.pl/

select: “h1”, “#login”, “form#login”, “.login > h1:nth-child(1)”

I see sensor in Development Tool but no matter what I do I have always “unavailable” state.
What Im doing wrong ? When I simply copy-paste example sensor from multiscrap documentation, it works perfectly.

I will appreciate for any hints or advices

2

I think I found the problem. unique_id cannot have a “-” but only “_”
When I changed that, everything is working well.

If it will help someone, this is my working configuration:

- name: NAS_Status
  resource: http://files.amadeuszjakobczak.pl
  scan_interval: 10
  sensor:
    - unique_id: AJ_NAS_Online_Check
      name: AJ NAS Online Check
      select: "title"
      value_template: '{{ "available" if value == "File Browser" else "unavailable" }}'