CSDN
Latest recorded position: #22 on Oct 4, 2026, 11:21 PM CST.
Across 2 retained daily records, the best recorded rank was #15. From the first retained rank (#15) to the last (#22), this listing fell 7 places.
[Computer Networking from Scratch] How Is TCP Retransmission Timeout (RTO) Calculated?
【从0开始学习计算机网络】| TCP 超时重传时间（RTO）到底是怎么算出来的？
ThreadEast first recorded "[Computer Networking from Scratch] How Is TCP Retransmission Timeout (RTO) Calculated?" on Oct 3, 2026, 8:55 PM CST. It has been observed on CSDN, with 26 hours between the first and latest recorded appearances.
What the trend data tells us
The English title describes the topic of the source listing. Its appearance in a ranking measures attention within that platform; the ranking alone does not explain the cause of a spike or verify the underlying claim.
This stable URL remains available after a topic leaves a live ranking. Observation span is elapsed time between sightings, not continuous time on a chart. Platforms use different ranking and heat systems; their metrics are not added together.
Original evidence
Source listings
CS
#22Source metric: 3934
Original source Daily ranking timeline
Up to 180 recent daily records from retained observations and preserved archives. The best rank and last rank can differ within a day. Times use China Standard Time (UTC+8).
| Day | Platform | Best rank | Last rank | Observations |
|---|---|---|---|---|
| 2026-10-04 | CSDN | #19 | #22 | 2 |
| 2026-10-03 | CSDN | #15 | #15 | 1 |