Crawler Bench

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Crawling the Rust Book

Nine crawlers in 22 setups, each pointed at the same 114-page site (176 files) served from a remote mirror. Each run was screen-recorded and is replayed here on a unified clock, so you can watch them in real time.

Crawl Results

Beam Us UpFreeGUI · 16 threads (auto)
00:05.91140114 / 01243 MB114 pages · 0 assets · 1243 MB peak
Beam Us Up (JS)FreeGUI · 16 threads (auto)
00:44.61140114 / 01905 MB114 pages · 0 assets · 1905 MB peak
Beam Us Up CLIFreeCLI · 10 threads
00:04.81140114 / 01283 MB114 pages · 0 assets · 1283 MB peak
Beam Us Up CLI (JS)FreeCLI · 10 threads
00:43.41140114 / 0912 MB114 pages · 0 assets · 912 MB peak
GNU WgetFreeCLI · Single thread
00:02.311462114 / 623.4 MB114 pages · 62 assets · 3.4 MB peak
InterroBotFreeGUI · Default threads
00:02.311450114 / 50476 MB114 pages · 50 assets · 476 MB peak
InterroBot (JS)GUI · Default threads
00:39.611450114 / 50999 MB114 pages · 50 assets · 999 MB peak
InterroBot (Turbo JS)GUI · Turbo threads
00:21.511450114 / 501077 MB114 pages · 50 assets · 1077 MB peak
InterroBot (Turbo)GUI · Turbo threads
00:01.711450114 / 50439 MB114 pages · 50 assets · 439 MB peak
InterroBot CLIFreeCLI · Default threads
00:01.511450114 / 50156 MB114 pages · 50 assets · 156 MB peak
InterroBot CLI (JS)CLI · Default threads
00:39.311450114 / 50613 MB114 pages · 50 assets · 613 MB peak
InterroBot CLI (Turbo JS)CLI · Turbo threads
00:20.911450114 / 50742 MB114 pages · 50 assets · 742 MB peak
InterroBot CLI (Turbo)CLI · Turbo threads
00:01.011450114 / 50160 MB114 pages · 50 assets · 160 MB peak
KatanaFreeCLI · 10 threads
00:12.411350113 / 5058.0 MB113 pages · 50 assets · 58.0 MB peak
Screaming FrogFreeGUI · Default threads
00:05.011548115 / 481351 MB115 pages · 48 assets · 1351 MB peak
Screaming Frog CLIFreeCLI · Default threads
00:05.311548115 / 48595 MB115 pages · 48 assets · 595 MB peak
SEO MacroscopeFreeGUI · Default threads
00:12.211551115 / 51270 MB115 pages · 51 assets · 270 MB peak
SEO Macroscope (High)FreeGUI · 10 threads
00:12.211551115 / 51254 MB115 pages · 51 assets · 254 MB peak
SiteOne CrawlerFreeGUI · Default threads
00:14.411461114 / 61353 MB114 pages · 61 assets · 353 MB peak
SiteOne Crawler (High)FreeGUI · 8 threads
00:06.411461114 / 61351 MB114 pages · 61 assets · 351 MB peak
Visual SEO StudioFreeGUI · Default threads
00:05.411428114 / 28157 MB114 pages · 28 assets · 157 MB peak
Xenu's Link SleuthFreeGUI · 30 threads
00:04.311561115 / 615.7 MB115 pages · 61 assets · 5.7 MB peak

Resource Usage

Watch in Realtime

Every crawl starts together at 0:07. Click a screen to enlarge it.

0:00.0 / 1:02.0
Beam Us UpReady
Beam Us Up (JS)Ready
Beam Us Up CLIReady
Beam Us Up CLI (JS)Ready
GNU WgetReady
InterroBotReady
InterroBot (JS)Ready
InterroBot (Turbo JS)Ready
InterroBot (Turbo)Ready
InterroBot CLIReady
InterroBot CLI (JS)Ready
InterroBot CLI (Turbo JS)Ready
InterroBot CLI (Turbo)Ready
KatanaReady
Screaming FrogReady
Screaming Frog CLIReady
SEO MacroscopeReady
SEO Macroscope (High)Ready
SiteOne CrawlerReady
SiteOne Crawler (High)Ready
Visual SEO StudioReady
Xenu's Link SleuthReady

Setups

CrawlerVersionInterfaceThreadsSettingsMachine
Beam Us Up2.0.0GUI16 threads (auto)Default settingsMac mini (M1)
Beam Us Up (JS)2.0.0GUI16 threads (auto)JavaScript rendering onMac mini (M1)
Beam Us Up CLI2.0.0CLI10 threadsDefault settingsMac mini (M1)
Beam Us Up CLI (JS)2.0.0CLI10 threadsJavaScript rendering onMac mini (M1)
GNU Wget1.25.0CLISingle threadMirror presetMac mini (M1)
InterroBot2.15.0GUIDefault threadsDefault settingsMac mini (M1)
InterroBot (JS)2.15.0GUIDefault threadsJavaScript rendering onMac mini (M1)
InterroBot (Turbo JS)2.15.0GUITurbo threadsTurbo threads; JavaScript rendering onMac mini (M1)
InterroBot (Turbo)2.15.0GUITurbo threadsTurbo threadsMac mini (M1)
InterroBot CLI2.15.0CLIDefault threadsDefault settingsMac mini (M1)
InterroBot CLI (JS)2.15.0CLIDefault threadsJavaScript rendering onMac mini (M1)
InterroBot CLI (Turbo JS)2.15.0CLITurbo threadsTurbo threads; JavaScript rendering onMac mini (M1)
InterroBot CLI (Turbo)2.15.0CLITurbo threadsTurbo threadsMac mini (M1)
Katana1.7.0CLI10 threadsFull depth; no subdomains; images keptMac mini (M1)
Screaming Frog24.3.0GUIDefault threadsDefault settingsMac mini (M1)
Screaming Frog CLI24.3.0CLIDefault threadsDefault settingsMac mini (M1)
SEO Macroscope1.7.6.1GUIDefault threadsDefault settingsWindows 10 (VM)
SEO Macroscope (High)1.7.6.1GUI10 threads10 threadsWindows 10 (VM)
SiteOne Crawler1.0.8GUIDefault threadsReport upload offMac mini (M1)
SiteOne Crawler (High)1.0.8GUI8 threads8 threads; 50 requests/s; report upload offMac mini (M1)
Visual SEO Studio2.5.3.1GUIDefault threadsMax crawl depth 9Windows 10 (VM)
Xenu's Link Sleuth1.3.8GUI30 threadsDefault settingsWindows 10 (VM)

How This Was Measured

Test Machines
  • Mac mini (M1/Tahoe)8 GB of RAM · macOS 26.6.2
  • Windows 10 (Hyper-V)15.8 GB of RAM · Windows 10 · virtual machine

Each crawler ran by itself. Crawl time, counts, memory, and CPU are captured consistently, per OS. See more on how it’s measured.

Sites

Served from a remote server, reached over the internet.