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Logging · head to head

Uptime.com vs Fluentd

Uptime.com logo

Uptime.com

Logging

Website monitoring and uptime checker with 80+ global monitoring points

From
On request
Rated
-
Full reviewWebsite
Fluentd logo

Fluentd

Logging

Open Source Data Collector for Unified Logging

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Fluentd has a free tier, so it costs nothing to try first.
  • Each has a real cost: Uptime.com pricing structure not fully detailed publicly; Fluentd fluentd needs more than 60 MB of memory at runtime, against roughly 450 KB for Fluent Bit
  • They diverge on capability: Uptime.com covers Website monitoring, Fluentd covers Log collection.

Where they differ

Only the attributes on which Uptime.com and Fluentd actually diverge.

Attributes where Uptime.com and Fluentd differ
AttributeUptime.comFluentd
Starting priceOn requestFree
Pricing modelsubscriptionopen-source
Free tierNoYes
FoundedUnknown2011

Identical on both: platforms (Web, API), user rating (Not yet rated), category (Logging).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Uptime.com

  • Website monitoring
  • API monitoring
  • Synthetic monitoring
  • Page speed testing
  • Real User Monitoring
  • Status pages
  • Private locations
  • Global network

Only in Fluentd

  • Log collection
  • Data parsing
  • Filtering and buffering
  • Event routing
  • API
  • Webhooks
  • REST
  • Web support

What people use each for

The jobs each tool is most often brought in to do.

Uptime.com

  • Monitor website availability across multiple global locationsnot Fluentd
  • Test API endpoints and validate response timesnot Fluentd
  • Verify DNS resolution and certificate validitynot Fluentd
  • Track page load performance over timenot Fluentd
  • Send alerts to teams when issues occurnot Fluentd

Fluentd

  • Unified log collection and routing from many sources to many destinationsnot Uptime.com
  • Parsing and transforming log records before forwardingnot Uptime.com
  • Aggregating logs from containers into Elasticsearch, S3 or a SIEMnot Uptime.com

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Uptime.com

  • Pricing structure not fully detailed publicly
  • Limited information on check frequency in basic plans
  • Real User Monitoring and status pages require add-ons
  • Lower-tier plans may have feature limitations

Fluentd

  • Fluentd needs more than 60 MB of memory at runtime, against roughly 450 KB for Fluent Bit
  • Fluentd is built as a Ruby gem and depends on other gems, so a Ruby runtime is required
  • Its capability comes from over 1,000 external plugins rather than built in functionality, so each added input or output is a separate dependency
  • The Fluent Bit documentation states that cloud providers have switched from Fluentd to Fluent Bit for performance and compatibility and calls Fluent Bit the next generation solution

Pricing, plan by plan

Uptime.com

On request

No published plan breakdown. See the Uptime.com review.

Fluentd

Free
  • FreeFree
    • Log collection
    • Data parsing
    • Filtering and buffering

Which should you pick?

Choose Uptime.com if

  • You need website monitoring.
  • You work on Web, API.
  • You also want api monitoring.
Uptime.com review

Choose Fluentd if

  • You need log collection.
  • You want to start without paying.
  • You work on Web, Api.
  • You also want data parsing.
Fluentd review

Questions people ask

Is Uptime.com or Fluentd better?
Neither clearly leads. Uptime.com starts at On request and Fluentd at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Uptime.com or Fluentd?
Fluentd has a free tier; the other does not. Paid plans start at On request for Uptime.com and Free for Fluentd.
Does Uptime.com or Fluentd run on more platforms?
Uptime.com runs on Web, API. Fluentd runs on Web, Api.
Can I use Fluentd for free?
Yes. Fluentd has a free tier, so you can try it without paying. Uptime.com starts at On request.
What is Uptime.com best used for?
Uptime.com is most often used for monitor website availability across multiple global locations, test api endpoints and validate response times, verify dns resolution and certificate validity, track page load performance over time. Of those, monitor website availability across multiple global locations and test api endpoints and validate response times are not what Fluentd is typically brought in for.
What can Uptime.com do that Fluentd cannot?
Uptime.com covers Website monitoring, API monitoring, Synthetic monitoring, Page speed testing. Fluentd covers Log collection, Data parsing, Filtering and buffering, Event routing.

Answered from the vendors’ own pages

Uptime.com: Does Uptime.com offer a money-back guarantee?

Yes, Uptime.com provides a 30-day money-back guarantee for new users, allowing risk-free trial of their service.

Source
Fluentd: How much does Fluentd cost?

Fluentd is free and open-source under the Apache 2 License from the Cloud Native Computing Foundation (CNCF). There are no subscription fees, licensing costs, or commercial pricing tiers.

Source
Uptime.com: What alerting methods does Uptime.com support?

All plans include email and SMS alerting with 20+ integrations available including Slack, Teams, PagerDuty, and webhooks for custom integrations.

Source
Uptime.com: How many monitoring locations does Uptime.com have?

Uptime.com operates 80+ monitoring locations worldwide, enabling checks from multiple geographic regions to detect regional connectivity issues.

Source
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