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I am looking for a third-party service or tool that can trigger or hit a web page at scheduled times. Does anyone know of any? I currently use my windows scheduler to hit these pages, but there are gaps in this since I don't run my computer 24 / 7.
There are lots of free website monitoring services out there that check your site's availability by testing whether a given URL responds properly. One that I use is http://mon.itor.us/ Give it the URL of your page and that will do the trick.
One other alternative is Pingdom. They offer a free account for monitoring one web site. You can set Pingdom to send email or SMS if your site goes down and you can configure the service to hit your page for example once in every 5 minutes. You can set the check resolution quite freely.
Some other alternatives are MonitorUs (which RichieHindle already mentioned), SiteUptime and HyperSpin.
I created an open source app called Pinger. You can do unlimited URLs with intervals of your choosing. The docs has instructions for getting running on Heroku quickly:
https://github.com/austinthecoder/pinger
Only problem is, currently, you can only set an interval, not a specific time.
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I am a newbie to building web applications. I would like to build an app that will asynchronously check another website link to see if a file is posted. There is a file posted every day at an undetermined time, to a link corresponding to the day. If the file has not been posted, the link returns a 404. When the file is posted, the web app should notify all users.
What hosting services might be best suited for this? It will need to support authentication for users, and also the server side file link checking functionality. I was exploring Firebase Cloud Functions but I'm not sure how I would schedule a function to check the file link asynchronously throughout the day.
Any suggestions would be well appreciated. Thanks!
Firebase seems like a perfect fit for your needs. You can use one of Firebase's authentication providers to manage your authentication needs, and then use this in your security rules or cloud functions to control access.
Additionally, as Renaud stated in the comments, you can use scheduled functions to check the other site periodically throughout the day. I would set up a pub/sub that checks every x minutes (can be as frequent as once per minute) and then process this data however you'd like. Perhaps write to a document in Firestore that your users check for updates, or send a notification directly to your users.
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I have a project in which I have implemented hundreds of scrapy spiders.
Now I collided with the following problems:
time to time websites changes their DOM/API - so spider stop working or not all info collected
websites became unavailable or moved to another domain - spider stop working.
Since there are a lot of spiders it not easy to monitor the status of each spider.
is there any framework that provides the ability to monitor scrapy spiders?
status of running spider(s)
show when spider(s) stop working etc.
I have looked into scrapinghub/zyte but not sure if it good for our purpose because we need something that can be running locally.
Scrapydweb is basically just like Scrapinghub but you run it locally.
It can alert you when spiders fail with email/slack if I remember correct. It's a bit less user-friendly than scrapinghub since you have to manage servers and so on. But overall I think it was a good platform when I used it.
Airflow is a very handy platform for scheduling and monitoring.
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I am trying to find out if I can get notified when a site is down, or when a service running under WAS is no longer running.
I don't want to code a monitoring tool, I am sure there must be something out there...
I'm using this
http://tools.pingdom.com/
Beside the cool online tools you have a subscription for monitoring your site.
I found a couple more, haven't used them. These seem totally free while pingdom tools is only free for one site.
http://www.uptimerobot.com
http://ezinedesigner.com
I also had this need, so I created an open source app called Pinger. You can do unlimited URLs with intervals of your choosing. The docs has instructions for getting running on Heroku quickly:
https://github.com/austinthecoder/pinger
I personally use Content Site Monitor. It has a really simple and cool web interface that allows you to view your site’s up-time statistics on a desktop or mobile screen. It’s easy to configure your monitoring parameters as well.
It doesn't just ping your server to make sure that it's alive. It allows you to specify certain content/keywords that you want to monitor. It will send you alert email if the content/keywords are missing from your site or if your site goes down.
Best of all, it’s free to monitor up to 3 sites!
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Hai guys,
Is there any alternative for windows scheduler for an asp.net application... The alernative must be capable of doing scheduled tasks as i am into shared hosting where i cant add any task scheduler to my server... I know there is quartz.net but my application needs only one task to be scheduled daily so i dont want to use it.... Any other alternative which can carry out scheduled tasks for me....
One way to do this is..
You can write a windows service which will call your application url over a given period of time recurrently. Install and run this service from your personal computer or any other computer that you is mostly [almost 24x7] online.
Another way to this is..
use website uptime checking services. They call your URL at an interval. There are many free and paid services. I found this one to be good enough after some googling.
http://host-tracker.com/order-page/
Instead of a Windows Service you could always just write a simple powershell script to execute at certain intervals, 3 lines of code.
$ie = new-object -com "InternetExplorer.Application"
$ie.navigate("http://www.stackoverflow.com")
$ie.visible = $true
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What do you use to monitor the uptime / performance of your websites, specifically those based on a PHP/MySQL platform like Wordpress?
I'm looking for something that alerts me if the site is down, or performing too slowly, and has some useful (not volumeous!) charts showing me any potential problems, and what to do about them.
Thanks!
We along with the usual Nagios, we use Pingdom. It comes with lots of default checks.
For example it also reports how fast your website is or since they employ tests from different locations you get a nice graph how accessible your website was. To put some sense into it, add a reference check (e.g. google) and see how you perform.
Aside from HTTP etc. you can also check other services (mail, database, etc.). If they are not reachable from the outside, you can always create a script that outputs a standard "OK" and have Pingdom check on that, and report back if the output changed.
I should add that Pingdom is not a free service. But we've been using them for 10 months now and they haven't troubled us. :)
Try looking at Zabbix
http://www.zabbix.com/
WEB performance monitoring
WEB availability monitoring
Support of POST and GET methods
Try out Insping also
performance monitoring
availability monitoring
e-mail and SMS alerts