“Uptime” and “online right now” answer different questions. A website can respond successfully when you check it and still have experienced several outages earlier in the day. WebLens separates those two ideas: Website Status is an instant check, while Website Uptime builds…
When a website refuses to load, the first useful question is simple: is the site actually down, or is the problem somewhere between you and the site? A status check gives you an independent view of the public endpoint so you can…
A padlock answers one important question: can the connection be established over HTTPS? It does not answer every question a visitor may have about a site. A useful URL safety check should therefore separate transport security signals from broader claims about trust.…
HTTP headers are small pieces of metadata that travel with a web response, but they often explain behavior that is otherwise difficult to see. When a page caches unexpectedly, returns the wrong content type, or appears to be missing a security control,…
When HTTPS stops working, the certificate is often one of the first things to investigate. An SSL checker can answer a focused question quickly: what certificate does the public endpoint present, and is it currently inside its validity period? What WebLens checksWebLens…
An IP address is a network identifier, but by itself it is not a street address or a person's identity. An IP lookup adds public network context around that address: where a geolocation database places it, which ISP or organization is associated…
DNS is the directory system that connects human-readable domain names with network services. When a website, API, or email service behaves unexpectedly, DNS is often the fastest place to look for an explanation. The key is knowing what each record means and…
DNS is usually the first network lookup involved in reaching a hostname. That makes resolver performance interesting when a site feels slow, especially on networks where DNS requests are frequent. But DNS speed is only one part of page performance, so a…
Domain registration data is useful when you need to understand who manages a domain, when it was registered, or whether an important lifecycle date is approaching. Today, much public registration information is delivered through RDAP, the modern protocol WebLens uses for its…
“Ping” is often used as a general word for network responsiveness, but different tools measure different things. WebLens uses a focused approach: it measures how long it takes to establish a TCP connection to port 443 on the target host. What the…
A service can be healthy inside a server and still be unreachable from the public Internet. A TCP port check answers the boundary question: will a connection from the WebLens server reach this port? What WebLens testsThe WebLens Port Checker attempts a…
When email delivery fails, the first DNS question is often straightforward: which servers does the domain publish for incoming mail? MX records answer that question. They are routing instructions for mail systems, not a guarantee that a mailbox exists or that a…
A domain name can be central to a website, email system, API, or brand. One administrative date can therefore have a large operational impact. A domain expiry check gives you a quick view of the public expiration date reported by registry data.…
The User-Agent header is one of the oldest ways a web request describes its client. Developers still use it when diagnosing compatibility, traffic patterns, and browser-specific behavior, but it is easy to overinterpret. A User-Agent string is client-supplied information, not a cryptographic…
An HTTP status code is the server's compact summary of what happened when it received a request. Reading that code before changing configuration can save time because it tells you whether you are looking at success, a redirect, a client-side error, or…
Explore practical WebLens guides for website status, DNS, SSL, HTTP, network latency, ports, IP information, and domain diagnostics.
