Not able to set www domain on top of apex domain

[njkevlani]

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Hey, I followed the guide from Configuring an apex domain and the www subdomain variant.

My domain is njkevlani.dev, which is working as expected, but www.njkevlani.dev is not failing to load with ERR_CERT_COMMON_NAME_INVALID error.

I'm a bit confused about how to debug this. Does anyone has some idea about this?

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Info about my setup

Screenshot of the error

The output of dig

$ dig www.njkevlani.dev +nostats +nocomments +nocmd
www.njkevlani.dev.      60      IN      CNAME   njkevlani.github.io.
njkevlani.github.io.    2143    IN      A       185.199.111.153
njkevlani.github.io.    2143    IN      A       185.199.108.153
njkevlani.github.io.    2143    IN      A       185.199.109.153
njkevlani.github.io.    2143    IN      A       185.199.110.153
$ dig njkevlani.dev +nostats +nocomments +nocmd
njkevlani.dev.          60      IN      A       185.199.109.153
njkevlani.dev.          60      IN      A       185.199.108.153
njkevlani.dev.          60      IN      A       185.199.110.153
njkevlani.dev.          60      IN      A       185.199.111.153

Settings on my domain

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Apart from that, I checked https://github.com/orgs/community/discussions/21837, which was exact same issue as mine, but it does not have an answer.

[njkevlani]

Any idea about this @yoannchaudet?

Edit: This was resolved after this: https://github.com/orgs/community/discussions/51008#discussioncomment-5482919.

[Lifehack25]

@yoannchaudet tried switching that and have waited for over a hour, it still doesn't work.

[yoannchaudet]

Your TTL on the record was 1 hour so you will need to wait more than that. It is cached at different levels by the magic of DNS:

[Lifehack25]

Hey @yoannchaudet waited 20 hours now, it still doesn't work.

[yoannchaudet]

Confirmed the configuration looks great now. I forced re-issue a certificate for you. It includes the www variant. Give it 10 minutes to propagate through the CDN.

[Lifehack25]

Great, now it's working, thanks!