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If Modified Since

v0.9

by ezraverheijen · updated 11 years ago

Comply with Webmaster Guidelines, save some bandwith and reduce server load with the If-Modified-Since header.

IF Modifeid Sinceif-modified-sinceseo
WordPress.org SaveAnalyze reviews Track this plugin
Rank
#6,700
Down8 vs yesterday
Active installs (est.)
≈ 1,200
1K+ reported · High
Total downloads
6.9K
6,854 all-time
Rating
3.7/5
3 reviews
Support resolved
–
0 of 0 threads, last 2 months
Growing·Downloads +18.2% (30d)·Toward 2K+ · ETA ~4mo

If Modified Since at a glance

If Modified Since is a WordPress plugin by ezraverheijen with 1K+ active installs, the #6,700 most popular plugin on WordPress.org. On a typical day it’s downloaded about 9 times, 18% more than the month before. It’s rated 3.7 out of 5 from 3 reviews. Version 0.9 came out on Aug 17, 2015, more than 11 years ago. It is tested up to WordPress 4.2.39. It leads the 2 plugins tagged “if-modified-since”. It was first released in 2015.

Chart time range

Applies to every chart below. History from Oct 10, 2026, 30 days.

Showing the last 30 days. Full history comes with any paid plan.See plans

Downloads over time

Download stats

205 downloads · the last 30 days

Downloads over time
If Modified Since Compare series
Downloads over time: 26 days across 1 series.51015Oct 10Oct 14Oct 18Oct 23Oct 27Oct 31Nov 4
View as table
DateIf Modified Since
Nov 4, 20265
Nov 3, 20269
Nov 2, 202614
Nov 1, 202615
Oct 31, 202610
Oct 30, 20265
Oct 29, 202611
Oct 28, 20269
Oct 27, 20269
Oct 26, 202612
Oct 25, 202614
Oct 24, 20266
Oct 23, 20265
Oct 22, 20268
Oct 21, 20266
Oct 20, 20268
Oct 19, 202612
Oct 18, 20263
Oct 17, 20267
Oct 16, 20265
Oct 15, 20266
Oct 14, 20266
Oct 13, 20266
Oct 12, 20262
Oct 11, 20265
Oct 10, 20267

Unusual spikes are usually updates, not new installs.

Estimated installs

≈ 1,196 · -2.2% in the last 30 days

Estimated installs
Estimated installs: 12 days across 1 series.1.2K1.2K1.2KOct 27Oct 29Oct 31Nov 2Nov 4Nov 8
View as table
DateEstimated installs
Nov 8, 20261,196
Nov 7, 20261,198
Nov 5, 20261,198
Nov 4, 20261,203
Nov 3, 20261,199
Nov 2, 20261,200
Nov 1, 20261,199
Oct 31, 20261,198
Oct 30, 20261,199
Oct 29, 20261,197
Oct 28, 20261,199
Oct 27, 20261,223

Rank over time

#6,700 · up 6 in the last 30 days

Popular rank
Popular rank: 13 days across 1 series.#6.7K#6.7K#6.7K#6.7KOct 27Oct 29Oct 31Nov 2Nov 4Nov 6Nov 8
View as table
DateDaily snapshot
Nov 8, 2026#6,700
Nov 7, 2026#6,692
Nov 6, 2026#6,698
Nov 5, 2026#6,690
Nov 4, 2026#6,681
Nov 3, 2026#6,680
Nov 2, 2026#6,682
Nov 1, 2026#6,687
Oct 31, 2026#6,692
Oct 30, 2026#6,697
Oct 29, 2026#6,709
Oct 28, 2026#6,714
Oct 27, 2026#6,706

Growth %

Average -0.19% a day in the last 30 days

Growth %, day over day
Growth %, day over day: 11 days across 1 series.-2%0%2%Oct 28Oct 30Nov 1Nov 4Nov 8
View as table
DateGrowth
Nov 8, 2026-0.17%
Nov 7, 20260.00%
Nov 5, 2026-0.42%
Nov 4, 2026+0.33%
Nov 3, 2026-0.08%
Nov 2, 2026+0.08%
Nov 1, 2026+0.08%
Oct 31, 2026-0.08%
Oct 30, 2026+0.17%
Oct 29, 2026-0.17%
Oct 28, 2026-1.96%

Active installs band

1K+ on WordPress.org

Active installs (rounded band)
Active installs (rounded band): 13 days across 1 series.9501K1.1KOct 27Oct 29Oct 31Nov 2Nov 4Nov 6Nov 8
View as table
DateDaily snapshot
Nov 8, 20261K+
Nov 7, 20261K+
Nov 6, 20261K+
Nov 5, 20261K+
Nov 4, 20261K+
Nov 3, 20261K+
Nov 2, 20261K+
Nov 1, 20261K+
Oct 31, 20261K+
Oct 30, 20261K+
Oct 29, 20261K+
Oct 28, 20261K+
Oct 27, 20261K+

Search rankings

Where it appears in WordPress.org search for the searches you track, checked every day.

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Change log

From our daily snapshot of WordPress.org

No changes yet. When this plugin's name, short description, tags, “Tested up to” or version change, they show here with what happened to its rank next.

Versions in use

Share of active installs on each published version, from WordPress.org.

  • v0.9100%

Rating trend

3.7★★★★★3 reviews · steady in the last 30 days

Requirements & info

Version history
Version
0.9
Requires WordPress
3.5
Tested up to
4.2.39
Requires PHP
–
First released
Aug 17, 2015
Last updated
Aug 17, 2015
Releases, last 12 months
…

Questions about If Modified Since

How many websites use If Modified Since?

If Modified Since is active on 1K+ WordPress sites, as WordPress.org reports it. WordPress.org rounds the number down, so the real count is somewhat higher. That makes it the #6,700 most popular plugin on WordPress.org.

How many times has If Modified Since been downloaded?

6,854 times in total since 2015. On a typical day it’s downloaded about 9 times. See download stats

When was If Modified Since last updated?

Version 0.9 came out on Aug 17, 2015 (11 years ago). See every release

Is If Modified Since compatible with the latest WordPress?

If Modified Since’s readme says it’s tested up to WordPress 4.2.39, while the current version is 7.1. That doesn’t mean it breaks, but its author hasn’t confirmed it works with the latest releases.

Does If Modified Since have known security vulnerabilities?

No. WPVulnerability’s database lists no known vulnerabilities for If Modified Since. See its security record

Is If Modified Since still maintained?

Its last release was 11 years ago, so it may no longer be actively maintained. No support threads were opened in the last two months.

What rating does If Modified Since have?

3.7 out of 5 from 3 reviews on WordPress.org.

Latest reviews

Analyze reviews
All reviews on WordPress.org

Review stats

3.7

★★★★★

3 reviews

  • 5 stars: 2 reviews, 67%
  • 4 stars: 0 reviews, 0%
  • 3 stars: 0 reviews, 0%
  • 2 stars: 0 reviews, 0%
  • 1 stars: 1 reviews, 33%
Positive
67%4–5★
Mixed
0%3★
Critical
33%1–2★
  • About 1 more 5★ reviews would lift it to 3.8.
  • Each new 1★ review takes 2 five-star reviews to balance out.

Compare with competitors

Add up to 1 competitor. No account needed.

Starter · 1 competitor
If Modified Since
Metric
If Modified Since
Estimated installs≈ 1,200
Reported installs1K+
Rating3.7
Reviews3
Total downloads6.9K
Authorezraverheijen
First releasedAug 17, 2015
Version0.9
Requires WP3.5
Requires PHP–
Last updatedAug 17, 2015

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