
Pingdom
UptimeRobot
StatusCake
Uptime Kuma
Better Uptime
Better Stack
Site24x7
Uptime.com
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.
Pingdom
BlockchainSignNo BlockchainSign videos yet. You could help us improve this page by suggesting one.
Based on our record, Pingdom seems to be more popular. It has been mentiond 3 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.
So the way I troubleshoot which one is losing connection is by setting up 2 ping monitors with pingdom.com. Source: about 5 years ago
Basically, I'm getting results like these on average: https://imgur.com/X7RV1LH from running Salesforce's speedtest tool. It's a pretty new computer, brand new job for me (though I experienced this in an old job as well) so I don't have a great baseline. As you can see, everything is good except the download speeds. I've checked my speeds on fast.com and tested my google mesh wifi from directly within the Google... Source: about 5 years ago
A lot of websites worldwide went down in the last hour. 30k websites according to pingdom.com the number has been slowly going back down. Source: about 5 years ago
UptimeRobot - Free Website Uptime Monitoring
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.