Downtime costs you traffic, conversions, and trust — and most of it goes undetected for longer than it should. Seomer monitors your website availability, network reachability, and certificate validity continuously, so you know the moment something stops working rather than finding out from a user complaint.
A site that returns a 200 status but serves broken content is technically "up" and practically broken. An API that times out under load doesn't always throw an error. A DNS misconfiguration can take your site offline in some regions while it looks fine in others. Standard uptime monitoring that only checks whether a server responds misses all of this.
Seomer runs checks across availability, network, and security layers — giving you a fuller picture of what "working" actually means for your infrastructure.
Seomer organizes uptime checks into three areas: availability, network, and security. You configure what matters for your setup and Seomer handles the rest continuously.
Covers the checks closest to what your users actually experience. Website availability confirms your site responds correctly. Content check verifies that a specific element or string is present on the page — useful for catching deployments gone wrong or CMS issues that don't produce HTTP errors. API availability monitors your endpoints for correct responses. Heartbeat monitoring detects when a scheduled job or background process stops reporting in.
Covers infrastructure-level reachability before a request even reaches your application. Ping checks confirm a host is responding. Port availability verifies that specific services are accepting connections. DNS resolution checks that your domain resolves correctly. UDP response monitoring covers services that run outside standard HTTP. These checks surface problems that application-level monitoring won't catch.
Covers the expiration checks that are easy to forget until they cause a visible incident. SSL certificate monitoring alerts you before a certificate expires, giving you time to renew without downtime or browser warnings. Domain expiration monitoring ensures you don't lose your domain because an auto-renewal failed silently. Both checks run automatically once configured.
Each check type surfaces a different category of problem. Together they give you coverage across the failure modes that affect real sites and services.
Website availability checks detect when your site stops responding entirely or returns error status codes. These are the clearest failures — and also the ones where minutes matter most. Uptime monitoring tools that run frequent checks reduce the gap between when a problem starts and when you find out about it.
Heartbeat monitoring is specifically for processes that are supposed to report in on a schedule: cron jobs, backup tasks, data pipelines, scheduled scripts. If a process stops checking in, Seomer flags it. These failures are invisible to standard availability checks because there's no URL to ping — the problem is the absence of a signal, not a bad response.
Network-level checks — ping, port availability, DNS resolution — catch problems at a layer below your application. A DNS misconfiguration, a port that stops accepting connections, or a host that becomes unreachable can all cause user-facing failures without producing an obvious application error. Catching them at the network level means faster diagnosis and faster resolution.
An expired SSL certificate produces a browser security warning that stops visitors from reaching your site entirely. An expired domain takes everything offline at once. Both are entirely preventable with advance notice. Uptime monitoring services that include certificate and domain expiration checks give you that notice automatically, without relying on calendar reminders or email notifications buried in an inbox.
Setup is straightforward. You configure which checks you want, point them at the right endpoints, and Seomer starts monitoring on a continuous schedule.
For each monitor type, you provide the target — a URL, hostname, IP, or domain — and set the check parameters. Availability checks let you define what a successful response looks like, including expected content or status codes. Network checks let you specify ports and protocols. Certificate and domain checks just need the domain.
Once configured, checks run automatically on a schedule. There's no manual triggering required and no scripts to maintain. Seomer handles the scheduling, the requests, and the response analysis — and stores a history of results so you can see patterns over time, not just the current status.
When a check fails — or recovers — Seomer sends an alert. You see what failed, when it failed, and what the check returned. Recovery alerts are included so you know when an issue has resolved without having to check manually.
Use the same flexible SEOMER pricing model across monitoring, SEO intelligence, reports and extra tokens.
Choose a monthly plan for your workspace. Start small, validate the workflow and scale as your projects grow.
For first checks, testing and basic access.
For small websites and early projects.
For growing projects that need regular control.
For SEO specialists and active multi-project work.
For teams, agencies and higher operational load.
Tokens are useful when you need extra capacity without changing your base plan immediately.
Continue running additional checks, reports and resource-heavy actions when monthly limits are reached.
Support larger checks, exports, archive research or SERP-related operations when your workflow grows.
Buy capacity when you need it and keep your subscription plan aligned with your regular usage.
Need more capacity? Buy tokens anytime and keep working without immediately changing your plan.
Small package for occasional extra usage.
Balanced package for regular additional checks.
Large package for active workflows and higher load.
Detailed pricing for individual modules will be expanded later. For now, start with a base plan and use tokens when your workflow needs additional capacity.
Start free trial →Manually checking whether your site is up — refreshing the browser, running a ping, glancing at a status page — gives you a snapshot. It tells you nothing about what happened in the past hour, the past day, or while you were asleep. Real monitoring requires continuous, automated checks with alerting. Here's where the gaps appear without it.
When you notice your site is down and fix it, the incident started earlier — usually well before anyone flagged it. Without uptime monitoring software running frequent automated checks, the real duration of an outage is almost always longer than the one you observed. That gap matters for SEO, for SLAs, and for understanding how often failures actually occur.
A site can return HTTP 200 while serving an error page, a blank template, or content that's completely wrong because a deployment failed halfway. A content check that verifies a specific element is present catches this where a simple availability check won't. Effective uptime checker setups include response validation, not just reachability.
SSL and domain renewals are the kind of maintenance task that seems easy to track manually until it isn't. Registrar email reminders go to spam. Calendar entries get overlooked. The renewal fails and the certificate expires during a period when no one is watching. Automated expiration monitoring removes the human dependency entirely — the alert arrives when you need it, not after the incident has already started.
Answers to common questions about uptime monitoring for websites, apis, and infrastructure.
Seomer supports website availability, content checks, API availability, and heartbeat monitoring for availability; ping, port availability, DNS resolution, and UDP response for network; and SSL certificate and domain expiration for security and validity.
Check frequency depends on your plan. Details are on the pricing page. Higher-tier plans support more frequent checks for time-sensitive monitoring.
A heartbeat monitor expects a regular signal from a process on your side — a cron job, a script, or a background task. If the signal stops arriving on schedule, Seomer alerts you. It's useful for any automated process where the failure mode is silence rather than an error response.
Yes. API availability monitoring checks that your endpoints respond correctly, including response code and optionally response content. You configure what a healthy response looks like and Seomer checks against that definition.
Alert timing is configurable. You can set how many days before expiration you want to be notified, so you have enough lead time to renew without rushing.
Yes. No credit card required. Configure your most important monitors and see how alerting works before choosing a plan. --- *Keywords placement:* - *uptime monitoring* — H1 (заголовок страницы) - *uptime monitor* — H2 "Most Downtime Goes Unnoticed Until It's Too Late" (body: "uptime monitoring that only checks") - *uptime monitoring software* — H3 "Downtime Has a Longer Tail Than It Looks" (body) - *uptime monitoring tools* — H3 "Outages That Affect Real Users" (body) - *uptime checker* — H3 "Not All Failures Look Like Downtime" (body) - *uptime monitoring services* — H3 "Certificate and Domain Issues Before They Cause Incidents" (body)
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