I came a cross a DOI which redirects to an unreachable host:
DOI: 10.14257/ijseia.2013.7.5.36
Redirects to: www.sersc.org/journals/IJSEIA/vol7_no5_2013/36.pdf
Archived version of the paper: scholar.archive.org/work/43ddadbf-34cf-4b9a-839b-7bf63a9e8d25
As Crossref search finds the DOI, reporting it here at Crossref seems the most reasonable way to me.
I think the reason for the problem is that the journal of this paper seems to have its last publication in 2016: www.scimagojr.com/journalsearch.php?q=21100199850&tip=sid
What a good find! Thank you for taking the time to report this to us.
After some digging I found there are 762 other DOIs with this same server in their resolution URL that are also failing. I have sent this list to our technical contact at the publisher to update their URLs to a working location. I’ll update this post again when I hear back from the publisher that they have updated them.
Thank you for your patience on this. I have tried following up with the publisher on their obligations to keep these URLs updated. They informed us that they are trying to restore access to this domain. I’ll continue to work with them to update their URLs to archived versions instead.