WWW.RTSAK.COM - fres-dc4.fres.upenn.edu
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fres-dc4.fres.upenn.edu checked at 2025-11-25T00:11:28.392Z 275ms 34/34/34 100% R:14 allDone:true timedOut:false fres-dc4.fres.upenn.edu
| A | 130.91.137.23🇺🇸 UPENN | ||||||
| PTR | fres-dc4.fres.upenn.edu | ||||||
fres.upenn.edu
| MX | mxa-00390e01.gslb.pphosted.com | ||||||
| MX | mxb-00390e01.gslb.pphosted.com | ||||||
| A | 130.91.137.20🇺🇸 UPENN | ||||||
| A | 130.91.137.21🇺🇸 UPENN | ||||||
| A | 130.91.137.22🇺🇸 UPENN | ||||||
| A | 130.91.137.23🇺🇸 UPENN | ||||||
PTR for
AI analysis
fres-dc4.fres.upenn.edu resolves to a single IP: 130.91.137.23.
Other host names including forestdnszones.fres.upenn.edu, fres.upenn.edu and domaindnszones.fres.upenn.edu share IP numbers with fres-dc4.fres.upenn.edu.