Hi there!
I was trying to resolve this issue via WeWeb support, but they didn’t manage to really help me.
In a nutshell, none of my pages are indexed by Google (aside from Homepage) for weeks if not months.
Google Search Console, when manually tested, shows that it can Crawl these pages and no issues are found. But then it still doesn’t add these pages to the indexing queue nor shows any errors.
We’ve uploaded a Sitemap directly to Google, but it didn’t help. Even though it shows correct amount of pages here.
One issue I see, that is when I go to Sitemap directly, it’s loaded as HTML in browser, not like XML file.
WeWeb’s Sitemap:
Other sitemaps:
Have anybody had this kind of issue before when building on WeWeb?
Hey 
HTML sitemaps are read by Google like XML ones (it’s actually a XML sitemap, but encoded as a string).
We plan on letting you update the WeWeb sitemap in a few weeks.
In the meantime, page should be indexed. Did you add a “nofollow” rule in your pages metadata or head? If not, are they dynamic collection pages?
No, they are not dynamic and have no “noindex” tags.
All SEO tools don’t show any critical errors or reasons why they’re not indexed.
Maybe is this just Google taking time to index them.
When a site is new or unknown, Google gives it a low priority and doesn’t crawl it 100%. Over time, Google will crawl it more and more.
For how much time was the site up and running? Also, how many pages are we talking about?
Website is around 5 months old, we added new pages around 1 month ago and they’re still not indexed.
We dig into it a little bit, and it looks like new pages are not only not indexed, but not even discovered.
So when we manually submit them for indexing, Google shows that pages are not known to Google.
Search engines like DuckDuckGo and Bing has these pages indexed.
That’s really weird then, as DuckDuckGo and Bing use the same logic as Google to discover new pages, be it by crawling the app or through the sitemap.
Did you try outreaching Google to ask them? That seems to be an issue on their side then 
(I previously worked in SEO, and have never seen an issue like this, sorry I can’t help more 
)
We wrote a post on Google Webmasters forum, but nothing helped yet.
Is there any chance I can send you a custom Sitemap to upload under our domain?
@Quentin
I think we’ve found an issue.
Hreflangs are generated automatically on pages.
Urls here are relative and without trailing slashes
This causes 301 redirects for Google crawler when testing without trailing slash
And hreflang errors when testing normal URL
Is there a way to remove hreflangs from our website or fix them?
EDIT:
I tried to turn languages off, then my URL just disappeared and in published project was redirecting to 404.
