SubTrends

Averages 37 posts/day, top 5% activity. Most active Fridays around 1 PM UTC. Mostly text posts (68%).

Posts / Day Average posts per day this month. Arrow is change vs the prior calendar month.
37 1%
Avg Upvotes Mean net upvotes per post this month (upvotes minus downvotes). Arrow is change vs the prior month.
10 25%
Avg Comments Mean number of comments per post this month. Arrow is change vs the prior month when that month’s data is available.
5 0%
Activity Rank #3,816 by posts/day among 92,652 tracked SFW subreddits as of Jul 2026 (Top 5%). Arrow is spots gained or lost vs the prior month.
#3,816 83
Top 5%
Posts w/ Links The percentage of posts that link off-site. This counts true link posts plus text posts with a URL in the body. Image and video posts are not counted.
23%
Low-Reply Rate Share of posts with 0 or 1 comment. A single comment is often an automated mod reply rather than real community discussion.
58%

r/cancer Traffic & Engagement

Volume and engagement over time

Posts/DayAvg Upvotes0204060010203040Jul 1Jul 8Jul 15Jul 22Jul 29
Posts/Day Avg Upvotes Mean net upvotes per post in this bucket.

Post Format

Top Post Type Text
Typical Title Length Short (51 chars)
Peak Day Sunday

Upvote Distribution

How upvoted posts perform Only posts with 2+ upvotes. The bands below show how those posts are spread by upvote count.

2–9
66%
10–99
32%
100–999
3%
1K+
0%
Posts that get upvoted Share of posts that received at least one upvote (2+ net upvotes). Most posts at 1 upvote are excluded. 53%
Median upvoted post Median upvotes among posts that received upvotes. Differs from Avg Upvotes in the snapshot, which includes every post. 6
Top post Highest upvote count on a single post this month. 535

r/cancer Most Active Times

Peak posting by day and hour (UTC)

Sun
Mon
Tue
Wed
Thu
Fri
Sat
12 AM
1 AM
2 AM
3 AM
4 AM
5 AM
6 AM
7 AM
8 AM
9 AM
10 AM
11 AM
12 PM
1 PM
2 PM
3 PM
4 PM
5 PM
6 PM
7 PM
8 PM
9 PM
10 PM
11 PM
← Swipe →
#1 Top 3 activity windows

Most Active by Day

Sun 11 AM
Mon 9 AM
Tue 9 AM
Wed 2 AM
Thu 12 PM
Fri 1 PM
Sat 12 PM

r/cancer Flair Performance

Upvotes and volume by flair

Flair Posts Upvotes
Patient 627 (57.6%)13
Caregiver343 (31.5%)5
Study72 (6.6%)2
Death42 (3.9%)26
Moderator Mandated Bonding5 (0.5%)8

Post Type Breakdown

Share by text, image, or link

68%text posts

r/cancer Trending Keywords

Ranked by how often they appear

KeywordMentions ▼UpvotesComments
cancer
398 (34.5%)
94
help
84 (7.3%)
22
stage
84 (7.3%)
93
treatment
54 (4.7%)
85
dad
45 (3.9%)
103
advice
44 (3.8%)
32
diagnosed
44 (3.8%)
114
looking
43 (3.7%)
32
anyone
42 (3.6%)
95
mom
41 (3.6%)
34

r/cancer Mentioned Domains

Most linked sites

Domain Links Upvotes
youtube.com81
gofund.me71
youtu.be61

r/cancer Top Posts

Highest-performing posts

r/cancer Audience Overlap

Overlapping audiences

r/cancer FAQ

What's the best time to post on r/cancer?

Based on posting volume, r/cancer is most active on Fridays around 1 PM UTC. That window has the most community activity, but busier hours also mean more competition for attention.

How active is r/cancer?

r/cancer averages 37 posts per day and ranks in the top 5% for activity among tracked SFW subreddits.

How many upvotes do posts on r/cancer get?

Posts on r/cancer average about 10 upvotes this month (net score per post).

What kind of posts does r/cancer get most?

On r/cancer, most posts are text posts (68%)