WWW.RTSAK.COM - casa.math.upenn.edu
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casa.math.upenn.edu checked at 2025-10-07T16:52:20.849Z 203ms 22/22/22 100% R:7casa.math.upenn.edu
| A | 128.91.40.23🇺🇸 UPENN | ||||||
| PTR | casa.math.upenn.edu | ||||||
math.upenn.edu
| MX | mxa-00390e01.gslb.pphosted.com | ||||||
| MX | mxb-00390e01.gslb.pphosted.com | ||||||
| A | 52.42.92.117🇺🇸 Amazon | ||||||
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casa.math.upenn.edu points to a single IP: 128.91.40.23.
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