Blog · Astrina
Astrina blog
Product guides, feature deep-dives and practical tips for getting the most out of your analytics, reviews, SEO, login & support — all in one place.
DevelopersCode minifier — Free Developer ToolMinify CSS and JavaScript. Runs entirely in your browser — nothing is uploaded.August 8, 2026Read →AnalyticsWeekly SEO report — Website MonitoringAn automatic audit every week. Runs on a schedule and alerts you on changes.August 8, 2026Read →AnalyticsSEO monitor — Website MonitoringDaily tracking of SEO signals. Runs on a schedule and alerts you on changes.August 8, 2026Read →AnalyticsSSL monitor — Website MonitoringWarns before the certificate expires. Runs on a schedule and alerts you on changes.August 8, 2026Read →AnalyticsUptime monitor — Website MonitoringAvailability checked around the clock. Runs on a schedule and alerts you on changes.August 8, 2026Read →DevelopersNginx generator — Free Developer ToolA server block with TLS and compression. Runs entirely in your browser — nothing is uploaded.August 8, 2026Read →DevelopersPalette from an image — Free CSS ToolExtract a colour palette from a picture. Runs entirely in your browser — nothing is uploaded.August 8, 2026Read →DevelopersPalette from a website — Free CSS ToolThe colours a site actually uses. Fast server-side check, no account needed.August 8, 2026Read →DevelopersPassword generator — Free Online ToolStrong passwords, generated locally. Runs entirely in your browser — nothing is uploaded.August 8, 2026Read →SEOPassword strength — Free Security ToolComplexity and time to crack. Stays local. Runs entirely in your browser — nothing is uploaded.August 8, 2026Read →DevelopersPEM viewer — Free Developer ToolInspect certificates, keys and CSRs. Runs entirely in your browser — nothing is uploaded.August 8, 2026Read →DevelopersPHP formatter and syntax check — Free Developer ToolFormats PHP and reports syntax errors. Runs entirely in your browser — nothing is uploaded.August 8, 2026Read →DevelopersPHP version — Free Developer ToolDetect the PHP version a server reveals. Fast server-side check, no account needed.August 8, 2026Read →Developerspx ↔ rem converter — Free CSS ToolPixels to rem and em, with a table. Runs entirely in your browser — nothing is uploaded.August 8, 2026Read →DevelopersQR generator — Free Online ToolAny text or link as a QR code. Runs entirely in your browser — nothing is uploaded.August 8, 2026Read →DevelopersQR decoder — Free Online ToolRead a QR code from an image. Runs entirely in your browser — nothing is uploaded.August 8, 2026Read →DevelopersRandom data — Free Online ToolNumbers, strings, UUIDs, emails, names. Runs entirely in your browser — nothing is uploaded.August 8, 2026Read →DevelopersReading time — Free Online ToolHow long an article takes to read. Runs entirely in your browser — nothing is uploaded.August 8, 2026Read →SEOReadability analysis — Free SEO ToolText difficulty and readability metrics. Fast server-side check, no account needed.August 8, 2026Read →SEORedirect checker — Free SEO ToolFollows 301/302 chains hop by hop. Fast server-side check, no account needed.August 8, 2026Read →DevelopersRegex tester — Free Developer ToolTest regular expressions with groups. Runs entirely in your browser — nothing is uploaded.August 8, 2026Read →DevelopersResponsive tester — Free CSS ToolPreviews at phone, tablet and desktop widths. Uses a real browser for accurate measurements.August 8, 2026Read →SEOrobots.txt generator — Free SEO ToolBuild the file with a visual editor. Runs entirely in your browser — nothing is uploaded.August 8, 2026Read →SEOrobots.txt analyser — Free SEO ToolParses the file and resolves it per crawler. Fast server-side check, no account needed.August 8, 2026Read →
