Obseras
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Change monitoring · 24/7

Know what
changed. Before anyone else.

Obseras watches websites, PDFs, API endpoints, RSS feeds and GitHub repos — and emails you the exact diff the moment it appears. No noise, no manual checking.

Start free → See a live example
17
platforms tracked
6
source types
Free
no card
Obseras monitoring eye
live change feed · updated 2h ago
active sensors
17
all healthy
CHANGE BBC — World news Sep 21
BBC World News homepage refreshed its top stories with new headlines on Germany's political crisis, Yemen conflict, Japan typhoon, Trump's media lawsuit, and various international news items. Several stories were replaced or cycled out as part of routine news feed updates.
websites·pdf documents·rest & json apis·rss & atom·github repos·news articles·price lists·terms & policies
websites·pdf documents·rest & json apis·rss & atom·github repos·news articles·price lists·terms & policies
What it watches

One inbox for every change

Websites
Any public page — pricing, docs, terms, job posts. Watch the whole page or one element.
competitor.com/pricing
PDFs
Contracts, price lists, specs. We diff the extracted text between versions.
rates-2026.pdf
APIs
JSON endpoints. Watch the whole response or a single JSON path.
api.example.com/v2/status
RSS feeds
New items in any feed — releases, blogs, filings.
blog.example.com/feed
GitHub repos
Releases, tags, or file changes in public repositories.
github.com/org/repo
Files
Any file by URL — CSVs, changelogs, robots.txt.
example.com/prices.csv
How it works

Watch → Detect → Understand → Alert

01
Watch
Paste a URL, PDF, API, RSS feed or GitHub repo. We fetch it on your schedule — every 15 minutes to weekly. Nothing to install.
02
Detect
Each check is compared to the previous one. We strip out noise — timestamps, ads, rotating content — so only real changes count.
03
Understand
You get the exact diff: old value vs new, side by side, plus an optional plain-English summary of what changed.
04
Alert
The moment it changes, an email lands in your inbox — Telegram too on Pro. No dashboards to keep checking.
The email

The exact diff, in your inbox

No dashboards to check. When a watch fires, you get one email: what changed, old value, new value, when. That's it.

✓ Only emails when something actually changed
✓ Ignores noise — timestamps, ads, rotating content
✓ Full change history kept for every watch
From Obseras · to you
Change on competitor.com/pricing
2026-07-02 14:03 UTC
Pro — € 49 per month, billed yearly Pro — € 59 per month, billed yearly
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Pricing

Start free, grow when you need to

Free
€ 0
✓ 3 website watches
✓ Daily checks
✓ Email notifications
Start free →
Popular
Pro
€ 1.99 / mo
✓ 20 watches, every type
✓ Checks down to every minute
✓ Email + Telegram notifications
Get Pro → or € 19 / year — save 20% ☕ or just buy us a coffee — € 3
Business
€ 9.99 / mo
✓ Unlimited watches, every type
✓ Everything in Pro
✓ Up to 5 extra emails & Telegram accounts
Get Business → or € 99 / year — save 17%
Join free →
Free during beta · No credit card

Questions

Do I need to install anything?
No. Obseras runs in the cloud — paste a URL and it starts watching.
How often does it check?
You pick: every 15 minutes, hourly, daily, or weekly, per watch.
Will it email me about every tiny change?
No. We ignore noise like timestamps, ads and rotating content, and you can watch just one element or value.
What happens after beta?
Pro is € 1.99 / month and Business € 9.99 / month. Beta users keep a discount, and we will email you well before anything changes.