10 KB LOG sample file
A LOG file of exactly 10,240 bytes. It is a valid Log file file, generated for this site and checked with an independent parser.
Download
sample-log-10kb.log
10 KB10,240 bytes
Download 10 KB LOGDirect download. No sign-up and no waiting.
- Type
- text/plain
- SHA-256
ec26d3c5689e10efe0fb0dbb97b17a8ddda3e7c4314f5d634d3c98b5ce67cc47- Direct URL
https://sampletestfiles.com/downloads/log/sample-log-10kb.log
What is in this file
63 web-server access log lines in Combined Log Format with increasing timestamps. One final request line carries a lengthened query string so the file reaches the exact size.
| Lines | 64 |
|---|---|
| Format | Combined Log Format (Apache and nginx access logs) |
| IP addresses | Documentation ranges from RFC 5737 |
| Encoding | UTF-8 (ASCII characters only) |
| Line endings | LF |
How the file begins
The opening lines of sample-log-10kb.log, exactly as they appear in the file.
192.0.2.239 - - [01/Jan/2026:00:00:00 +0000] "GET /assets/app.js HTTP/1.1" 200 4759 "https://example.com/" "ExampleMonitor/1.0"
198.51.100.123 - - [01/Jan/2026:00:00:01 +0000] "GET /favicon.ico HTTP/1.1" 500 33395 "https://example.com/" "curl/8.5.0"
192.0.2.55 - - [01/Jan/2026:00:00:03 +0000] "GET /favicon.ico HTTP/1.1" 404 10647 "https://example.com/" "ExampleMonitor/1.0"
198.51.100.184 - - [01/Jan/2026:00:00:05 +0000] "GET /assets/app.css HTTP/1.1" 200 36767 "https://example.com/" "Mozilla/5.0 (X11; Linux x86_64; rv:12…
203.0.113.34 - - [01/Jan/2026:00:00:06 +0000] "GET /index.html HTTP/1.1" 204 19807 "https://example.com/" "ExampleMonitor/1.0"
203.0.113.75 - - [01/Jan/2026:00:00:08 +0000] "GET /downloads/report.pdf HTTP/1.1" 304 8816 "https://example.com/" "ExampleMonitor/1.0"Preview
Shows the file contents.
Where 10 KB matters
A 10,240-byte file that still arrives in the first round trip of a new connection. These are the default limits a file of this size is useful for testing:
| System | Limit | Note |
|---|---|---|
| TCP initial congestion window | About 14.6 KB (10 segments) | A 10 KB response fits in the first flight of packets; the 25 KB sample does not. |
| nginx and Apache request headers | 8 KB per header line by default | Data this large must go in the request body. |
| webpack asset modules | 8 KB by default | Assets over the threshold are emitted as files instead of data URIs. |
Use this file for
- Checking thumbnail and icon handling
- Benchmarking ingestion pipelines
- Testing log parsers and grok patterns
Testing notes for LOG
- Request paths and user agents come from clients and may contain quotes or escape sequences; a pattern that assumes clean input will misparse real traffic.
- Timestamps carry a zone offset. Parsers that drop it shift every event.
Technical details
| File name | sample-log-10kb.log |
|---|---|
| Format | LOG (Log file) |
| Extension | .log |
| MIME type | text/plain |
| Size | 10,240 bytes (10 KB) |
| Kind | Text |
| SHA-256 | ec26d3c5689e10efe0fb0dbb97b17a8ddda3e7c4314f5d634d3c98b5ce67cc47 |
| Created | 2026-10-10 |
| Validation | Exact size, signature bytes and structure checked when the file was generated |
| Preview | Available on this page |
| Source | Generated for this site; not copied from elsewhere |
| Licence | Free to use, modify and redistribute (terms) |
| Category | Testing |
Validated for expected format and integrity. As with any download, scan the file with your own security tools before opening it. How files are made and checked
Download from the command line and verify
Fetch the file with curl, then compare its checksum with the SHA-256 value above.
curl -o sample-log-10kb.log 'https://sampletestfiles.com/downloads/log/sample-log-10kb.log'
sha256sum sample-log-10kb.log # Linux
shasum -a 256 sample-log-10kb.log # macOSOn Windows, run Get-FileHash sample-log-10kb.log -Algorithm SHA256 in PowerShell. A matching value proves that the download is complete and unaltered.
Related files
Questions about this file
- Is this file exactly 10 KB?
- Yes. It is 10,240 bytes, which is 10 KB in the binary units that operating systems and server limits use (1 KB = 1,024 bytes).
- What is inside the 10 KB LOG file?
- 63 web-server access log lines in Combined Log Format with increasing timestamps. One final request line carries a lengthened query string so the file reaches the exact size.
- Are the IP addresses real?
- No. They come from the address ranges that RFC 5737 reserves for documentation, so they belong to no one.