https://spectracomp.com 2026-07-10T05:08:46.918Z weekly 1 https://spectracomp.com/software/best-free-spectral-analysis-software 2026-07-09T00:00:00.000Z monthly 0.9 https://spectracomp.com/about 2026-07-10T05:08:46.918Z yearly 0.4