Website Uptime Monitor

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linear-regression.com

Uptime & Server Information

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Current Status

Status
Active
Server Type
Apache
Page Title
NLREG -- Nonlinear Regression Analysis Program
Meta Description
NLREG performs linear and nonlinear regression analysis and curve fitting. NLREG can handle linear, polynomial, exponential, logistic, periodic, and general nonlinear functions.
Meta Keywords
nonlinear regression, non-linear regression, non linear regression, linear regression, circular regression, dll, library, polynomial regression, curve fitting, dynamic link library, data mining, multiple regression, nonlinear function, nonlinear functions, non-linear function, non-linear functions, linear functions, Levenberg-Marquardt, Gauss-Newton, regression analysis, logistic regression, stepwise regression, step-wise regression, general regression, general functions, regression testing, nonlinear equation, nonlinear equations, linear equation, linear equations, linear algebra, linear regression formula, regression test, nlreg.dll, linear interpolation, curve fitting software, Visual Basic, VBA, C, nonlinear regression software, nonlinear regression program, nonlinear regression shareware, linear regression program, linear regression shareware, linear regression software, curve fitting algorithms, polynomial curve fitting, curve fitting program, data fitting, curve fitting shareware, surface fitting, non linear curve fitting, nonlinear curve fitting, linear regression analysis, nonlinear regression analysis, non linear regression analysis, fundamentals of regression analysis, applied regression analysis, exponential function, NLREG, curve fit, data plotting, nonlinear, non-linear, non linear, linear, regression, nonlin, statistics, statistical, correlation, Gauss Newton, Levenberg Marquardt, curve, fit, model, polynomial, exponential, logistic, periodic, adaptive, plot, graph, function, fitting, modeling, parameter, circular, stepwise, step-wise, piecewise, programming, language, C, least, squares, least squares, minimize, optimize, maximize, transform, transformation, covariance, correlate, Durbin, Watson, Durbin Watson, multivariate, probability, numerical, Windows, DOS, Windows 95, NT, Simstat, SPSS, minitab, t-test, Windows NT, 98, Windows 98, data, analysis, shareware, Maple, CurvExpert, residual, Matlab, Mathematica, Mathcad, Gauss, Statlib, Stata, software, Phil Sherrod, Phil, Sherrod, Phillip, Phillip Sherrod, program, data modeling, Vista
Last Checked
just now
Last Status Change
Came back up — 7 months ago (2/26/2026)
Last Downtime
First seen down 8 months ago (1/12/2026), back up 7 months ago

Observed Changes

DateStatusServer
9/11/2026, 11:53:44 AMActiveApache
9/1/2026, 11:31:23 AMActiveApache
7/30/2026, 5:56:35 PMActiveApache
6/30/2026, 11:29:16 AMActiveApache
2/26/2026, 5:13:41 AMActiveApache
2/3/2026, 9:13:35 AMInactiveUnknown
1/12/2026, 9:02:37 PMInactiveUnknown
12/11/2025, 4:49:32 PMActiveApache
8/31/2025, 7:31:32 PMInactiveUnknown

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Uptime

We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.

DNS changes

We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.

TLS certificate

We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.

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About Website Uptime Monitoring

Use the Who.is uptime information to track the availability and server information of websites. This helps track:

  • Website availability and response status
  • Server software and configuration
  • Meta information including titles and descriptions
  • Historical uptime patterns

This information is valuable for website owners, system administrators, and anyone interested in monitoring website reliability and performance.

What this page reports

  • Last status change: When we last saw a site switch between reachable and unreachable
  • Last downtime: When a site was most recently seen down, and whether it has come back
  • Server and meta information: The server software, page title and meta tags we last observed

We check a domain at most once a day and record an observation only when something changes, so these are the times a change was seen rather than the exact moment it happened. For continuous, minute-by-minute checks with alerting, use website monitoring.

Disclaimer: Who.is is not affiliated with, endorsed by, or connected to any of the domains displayed on this page. We provide this information as a public service for informational purposes only.