This product page fails to load for some reason: https://paizo.com/products/btpy8ysn
It is the link to the Shackled City Adventure Path hardcover. I know the link because I have it on my profile for a long time and it always worked.
I wanted to write a review today after finishing the AP but it is failing.
The dungeon issues link just works, but the hardcover is not listed there, as this is an independent book I guess: https://paizo.com/store/books/dungeon/products/issues/shackledCity