BlockchainSign
OriginStamp
ScoreDetect
Woleet
Stampery
Bitstamped
Certificado
Proof of existence
Netumo
UptimeRobot
Pingdom
Hyperping
Nodeping
Wormly
Status.io
Host Tracker
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.
Monitors your Sites' uptime, security, performance, Domain Name Expirations, and SSL Certificates 24/7. Netumo is not just an uptime monitor but a console to manage all your sites and ensure they are healthy. Check the performance of your site, the SEO and best practices as well as run vulnerability scans on the site.
Netumo also informs you if there is any downtime immediately via one of our integrated message platform, such as Email, SMS, Twilio, Webhooks, Slack, Webex and Microsoft Teams.
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Netumo's answer:
Netumo is not just an uptime monitoring platform. It offers more as uptime is just one part of a healthy website. Security, SEO checks and more are all as important.
Netumo's answer:
Netumo is unique as it offers various checks that truly check the if a website is healthy such as the vulnerability assessment, the performance, and more. It not only gives the problem but provides points on how to solve the issues.
Netumo's answer:
Any organization that has multiple websites and portals that need to be monitored and checked that they are running smoothly.
-Web Developers -Web Agencies -IT Departments that manage multiple portals and websites
Netumo's answer:
Netumo started as we saw a gap in the market from online tools that just check uptime and do not check other aspects of a website. It is vital for any organization that manages multiple websites to have a central console where they can see them all and check them not just that they are alive, but their security is fine and that they are truly healthy.
Netumo's answer:
Netumo is running on Microsoft Azure. It also does use several open source technologies to keep some checks running smoothly such as Lighthouse from Google Chrome, Nuclei, and also Azure Open AI.
A tool that I've introduced at my work place and for sure made it a lot easier for staff (DevOps/SysOps/NOCs/Managers,etc) to monitor Domains, Hosts, APIs, SSL Certs and more. Highly recommended to have this monitoring buddy at hand :)
Netumo is a very flexible tool that has all the features of any website monitoring service at a fraction of the price! My preferred feature is the Keyword Content Notification, where Netumo not only checks if the site is up but can check for certain content! Highly Recommended!
I thought Netumo was very useful for me. Was always notified when my website had issues. I liked the new UI very much and also found the new response time report very useful. Very easy to use and very good value for money especially since the prices were very affordable. Being a student I thought the free plan was very convenient to test out my new website.
OriginStamp - Blockchain-based, tamper-proof timestamping. Data Integrity as a Service.
UptimeRobot - Free Website Uptime 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.
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.
Woleet - Blockchain timestamping and certification Software as a Service , SaaS.
Hyperping - Cheap uptime and performance monitoring with detailed reporting and flexible alerting