UptimeRobot
Pingdom
StatusCake
Uptime Kuma
Better Uptime
Better Stack
Uptime.com
Site24x7
BlockchainSign
OriginStamp
ScoreDetect
Woleet
Stampery
Bitstamped
Certificado
Proof of existence
BlockchainSign is a blockchain timestamping service for people holding documents they cannot hand over.
Conventional options all require custody: a copyright office wants a deposit copy, a notary wants to see the paper, an e-signature platform wants the file on its servers. BlockchainSign never receives the file at all. The document is hashed with SHA-256 in the user's own browser using the Web Crypto API, and only the resulting hash is written to the Ethereum blockchain.
The result is a certificate file recording the hash, the transaction and the timestamp. Because each certificate is its own Ethereum L1 transaction, with the payload hash readable as UTF-8 on a public block explorer, verification does not run through the vendor's portal: if BlockchainSign shut down, existing certificates would still verify.
There is no subscription and no cryptocurrency wallet involved. Certificates are bought as credits with a card and spent when needed. Credits are valid for 12 months; an issued certificate never expires.
Key points
What it does not do. A timestamp proves that a file existed in that exact form at that time โ existence and integrity. It does not prove authorship or ownership, and it is not a substitute for copyright registration. There is no API or integrations yet, and no eIDAS qualified timestamp.
UptimeRobot BlockchainSignUptimeRobot is recommended for website owners, server administrators, small to medium-sized businesses, and developers who need consistent monitoring and want to ensure their web services are running smoothly without interruptions. It's also a great tool for IT professionals who require a straightforward monitoring solution without excessive costs.
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Based on our record, UptimeRobot seems to be more popular. It has been mentiond 9 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
UptimeRobot is probably the first monitoring tool most developers encounter. Founded in 2010, it built its reputation on a generous free tier โ 50 monitors with 5-minute checks, no credit card required. It remains the default recommendation in "how to monitor my side project" threads. Simple, reliable, and deliberately feature-limited. - Source: dev.to / 3 months ago
UptimeRobot is the monitoring tool most developers try first. It's been around since 2010, it has name recognition, and for years it offered one of the most generous free tiers in the industry: 50 monitors, 5-minute intervals, and enough features to run basic production monitoring without paying a cent. That changed in October 2024. - Source: dev.to / 3 months ago
UptimeRobot is the monitoring tool most developers try first. Its free tier โ 50 monitors with 5-minute intervals โ is generous enough for personal projects and early-stage products. Setup takes two minutes: enter a URL, pick HTTP, and you're monitoring. - Source: dev.to / 3 months ago
This is where intelligent integration shines. Imagine a world where every time your website, API, or server experiences an outage, your entire team is immediately notified in their primary communication hub. This tutorial from TechResolve will guide you through integrating UptimeRobot, a popular and reliable uptime monitoring service, with Microsoft Teams. By leveraging webhooks, we will create a robust system... - Source: dev.to / 7 months ago
UptimeRobot is known for its simplicity and effectiveness in uptime monitoring. It offers HTTP(s), ping, port, and keyword monitoring with 1-5 minute intervals. The platform includes SSL certificate monitoring and provides alerts via email, SMS, and integrations with services like Slack. - Source: dev.to / over 1 year ago
Pingdom - With website monitoring from Pingdom you will be the first to know when your website is down. No installation required. 30-day free trial.
OriginStamp - Blockchain-based, tamper-proof timestamping. Data Integrity as a Service.
StatusCake - Website Uptime Monitoring & Alerts โ Free Unlimited Downtime Monitoring
ScoreDetect - ScoreDetect is an innovative platform that serves as a permanence layer for data provenance, enabling systems and authorities to independently verify data authenticity.
Uptime Kuma - A fancy self-hosted monitoring tool.
Woleet - Blockchain timestamping and certification Software as a Service , SaaS.