What Does the Source Check Date Mean on GetZlib?
Read a sample source-check record, interpret UTC timestamps and unchanged addresses, and keep source lookups separate from connection tests.
The source check date on GetZlib's domain page records when the project's update process checked its domain information source. It is not the last time someone successfully opened the listed website.
Read a sample record
The following values are fictional teaching examples, not a live status report:
| Field | Example value | Interpretation |
|---|---|---|
| Recorded address | https://catalog.example.org/ | The address selected from the source |
| Source check time | 2026-10-20T08:00:00Z | The recorded source lookup time; Z means UTC |
| Next source check time | 2026-10-21T08:00:00Z | A later lookup can record the same address |
| Connection test | Not recorded | Do not infer a successful connection from either time |
For this example, 08:00 UTC is 16:00 in China Standard Time (UTC+8). The same instant may appear on a different local calendar date in another time zone. Compare the time zone as well as the date before concluding two records conflict.
If the address is unchanged and the check time advances, retain the same bookmark unless other evidence calls for a change. If the address changes, review the new hostname and source before replacing it. If the date stops advancing, note the displayed address and time; the page alone cannot tell you whether a job failed, publication was delayed or another issue occurred.
Keep a useful personal check note
Record three items together: “address shown,” “source check time shown,” and “time I viewed this page, with time zone.” Keep a connection result separately, with its browser error and network context if you actually tested it. Do not label a source lookup as “website verified.” For connection problems, use the troubleshooting steps rather than waiting for the date to change.
What the update process does
The normal update task fetches the Z-Library Wikipedia page, reads the website address from its infobox and writes the selected address and a check timestamp into GetZlib's configuration. The configured workflow is scheduled daily and can also be started manually; a schedule does not guarantee every run succeeds or reaches the live site.
The timestamp can advance even when the selected address stays the same. That means the source was checked again, not that a new domain was discovered.
Three dates with different meanings
| Date | What it describes |
|---|---|
| Article publication or update date | When an editorial article was published or revised |
| Domain source check date | When the update process checked the domain source |
| Connection test date | When a specific connection was actually tested; the source task does not record one |
Updating this article does not run a domain check. Checking the source does not update every article or test every access method.
What the date does not verify
The task does not request the destination website to test its HTTP response, validate its TLS configuration, or measure access from different regions. It also does not verify website ownership, scan installers, compare file signatures or hashes, send email, or connect through TOR.
A recent source date is not a safety badge. An older one does not by itself prove a domain is unavailable. A failed update may leave the previously recorded date in place; the date alone cannot explain the cause.
How to use it
- Review the address, source and timestamp together on the domain page.
- Compare the full destination hostname and seek corroborating information before entering credentials. Use the address-checking guide.
- If a link fails, note the error and use the troubleshooting guide. A source timestamp cannot diagnose your connection.
- For email, TOR and Android downloads, read their own verification notes rather than applying the domain date to them.
GetZlib is an independent, unofficial directory. Its source record helps explain where a link came from; it does not replace checking the destination.