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Last-Modified and If-Modified-Since Headers

v1.0

by zubovd · updated 5 years ago

Add Last-Modified anв support If-Modified-Since Headers

headersif-modified-sincelast-modified
WordPress.org SaveAnalyze reviews Track this plugin
Rank
#11,901
Up10 vs yesterday
Active installs (est.)
≈ 246
200+ reported · High
Total downloads
3.3K
3,282 all-time
Rating
5.0/5
2 reviews
Support resolved
–
0 of 0 threads, last 2 months
Declining·Downloads -25% (30d)·Toward 100+ · ETA ~2mo

Last-Modified and If-Modified-Since Headers at a glance

Last-Modified and If-Modified-Since Headers is a WordPress plugin by zubovd with 200+ active installs, the #11,901 most popular plugin on WordPress.org. On a typical day it’s downloaded about 6 times, 25% fewer than the month before. It’s rated 5.0 out of 5 from 2 reviews. Version 1.0 came out on Jul 20, 2021, more than 5 years ago. It is tested up to WordPress 5.7.21. Among the 2 plugins tagged “if-modified-since”, it ranks #2. It was first released in 2021.

Chart time range

Applies to every chart below. History from Oct 11, 2026, 30 days.

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

Downloads over time

Download stats

98 downloads · the last 30 days

Downloads over time
Last-Modified and If-Modified-Since Headers Compare series
Downloads over time: 25 days across 1 series.0510Oct 11Oct 15Oct 19Oct 23Oct 27Oct 31Nov 4Oct 29, 2026: Tested up to 5.7.21
View as table
DateLast-Modified and If-Modified-Since Headers
Nov 4, 20264
Nov 3, 20266
Nov 2, 202610
Nov 1, 202612
Oct 31, 20266
Oct 30, 20262
Oct 29, 20263
Oct 28, 20266
Oct 27, 20266
Oct 26, 20266
Oct 25, 20265
Oct 24, 20264
Oct 23, 20261
Oct 22, 20260
Oct 21, 20261
Oct 20, 20261
Oct 19, 20264
Oct 18, 20262
Oct 17, 20263
Oct 16, 20262
Oct 15, 20263
Oct 14, 20265
Oct 13, 20262
Oct 12, 20261
Oct 11, 20263

Unusual spikes are usually updates, not new installs.

Estimated installs

≈ 246 · -3.9% in the last 30 days

Estimated installs
Estimated installs: 14 days across 1 series.245250255Oct 27Oct 29Nov 1Nov 3Nov 5Nov 8Nov 10Oct 29, 2026: Tested up to 5.7.21
View as table
DateEstimated installs
Nov 10, 2026246
Nov 9, 2026245
Nov 8, 2026245
Nov 7, 2026246
Nov 5, 2026245
Nov 4, 2026246
Nov 3, 2026246
Nov 2, 2026245
Nov 1, 2026244
Oct 31, 2026245
Oct 30, 2026244
Oct 29, 2026245
Oct 28, 2026245
Oct 27, 2026256

Rank over time

#11,901 · up 39 in the last 30 days

Popular rank
Popular rank: 15 days across 1 series.#11.9K#12KOct 27Oct 29Nov 1Nov 3Nov 5Nov 8Nov 10Oct 29, 2026: Tested up to 5.7.21
View as table
DateDaily snapshot
Nov 10, 2026#11,901
Nov 9, 2026#11,911
Nov 8, 2026#11,926
Nov 7, 2026#11,916
Nov 6, 2026#11,929
Nov 5, 2026#11,919
Nov 4, 2026#11,888
Nov 3, 2026#11,887
Nov 2, 2026#11,922
Nov 1, 2026#11,958
Oct 31, 2026#11,917
Oct 30, 2026#11,934
Oct 29, 2026#11,932
Oct 28, 2026#11,942
Oct 27, 2026#11,940

Growth %

Average -0.28% a day in the last 30 days

Growth %, day over day
Growth %, day over day: 13 days across 1 series.0%Oct 28Oct 30Nov 1Nov 3Nov 5Nov 8Nov 10
View as table
DateGrowth
Nov 10, 2026+0.41%
Nov 9, 20260.00%
Nov 8, 2026-0.41%
Nov 7, 2026+0.20%
Nov 5, 2026-0.41%
Nov 4, 20260.00%
Nov 3, 2026+0.41%
Nov 2, 2026+0.41%
Nov 1, 2026-0.41%
Oct 31, 2026+0.41%
Oct 30, 2026-0.41%
Oct 29, 20260.00%
Oct 28, 2026-4.30%

Active installs band

200+ on WordPress.org

Active installs (rounded band)
Active installs (rounded band): 15 days across 1 series.190200210Oct 27Oct 29Nov 1Nov 3Nov 5Nov 8Nov 10Oct 29, 2026: Tested up to 5.7.21
View as table
DateDaily snapshot
Nov 10, 2026200+
Nov 9, 2026200+
Nov 8, 2026200+
Nov 7, 2026200+
Nov 6, 2026200+
Nov 5, 2026200+
Nov 4, 2026200+
Nov 3, 2026200+
Nov 2, 2026200+
Nov 1, 2026200+
Oct 31, 2026200+
Oct 30, 2026200+
Oct 29, 2026200+
Oct 28, 2026200+
Oct 27, 2026200+

Search rankings

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

See where Last-Modified and If-Modified-Since Headers ranks in search

Track this plugin to check its position for the searches you choose, daily, with an alert when it moves.

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Change log

From our daily snapshot of WordPress.org
  1. Rank #11942 → #11919
    • Tested up to 5.7.20 → 5.7.21

Versions in use

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

  • v1.0100%

Rating trend

5.0★★★★★2 reviews · steady in the last 30 days

Requirements & info

Version history
Version
1.0
Requires WordPress
5.2.4
Tested up to
5.7.21
Requires PHP
–
First released
Jul 20, 2021
Last updated
Jul 20, 2021
Releases, last 12 months
…

Questions about Last-Modified and If-Modified-Since Headers

How many websites use Last-Modified and If-Modified-Since Headers?

Last-Modified and If-Modified-Since Headers is active on 200+ WordPress sites, as WordPress.org reports it. WordPress.org rounds the number down, so the real count is somewhat higher. That makes it the #11,901 most popular plugin on WordPress.org.

How many times has Last-Modified and If-Modified-Since Headers been downloaded?

3,282 times in total since 2021. On a typical day it’s downloaded about 6 times. See download stats

When was Last-Modified and If-Modified-Since Headers last updated?

Version 1.0 came out on Jul 20, 2021 (5 years ago).

Is Last-Modified and If-Modified-Since Headers compatible with the latest WordPress?

Last-Modified and If-Modified-Since Headers’s readme says it’s tested up to WordPress 5.7.21, 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.

Is Last-Modified and If-Modified-Since Headers still maintained?

Its last release was 5 years ago, so it may no longer be actively maintained. No support threads were opened in the last two months.

What rating does Last-Modified and If-Modified-Since Headers have?

5.0 out of 5 from 2 reviews on WordPress.org.

What are the best alternatives to Last-Modified and If-Modified-Since Headers?

The plugins most like Last-Modified and If-Modified-Since Headers, by the tags they share, are LH Add Headers (10+), Headers Security Advanced & HSTS WP (90K+) and WP Last Modified Info (40K+). Compare all alternatives

Latest reviews

Analyze reviews
All reviews on WordPress.org

Review stats

5.0

★★★★★

2 reviews

  • 5 stars: 2 reviews, 100%
  • 4 stars: 0 reviews, 0%
  • 3 stars: 0 reviews, 0%
  • 2 stars: 0 reviews, 0%
  • 1 stars: 0 reviews, 0%
Positive
100%4–5★
Mixed
0%3★
Critical
0%1–2★

Compare with competitors

Add up to 1 competitor. No account needed.

Starter · 1 competitor
Last-Modified and If-Modified-Since Headers
Suggested:
Metric
Last-Modified and If-Modified-Since Headers
Estimated installs≈ 246
Reported installs200+
Rating5.0
Reviews2
Total downloads3.3K
Authorzubovd
First releasedJul 20, 2021
Version1.0
Requires WP5.2.4
Requires PHP–
Last updatedJul 20, 2021

Alternatives to Last-Modified and If-Modified-Since Headers

Compare all alternatives

Popular plugins with the same tags, the most in common first.

Side by side:Last-Modified and If-Modified-Since Headers vs LH Add HeadersLast-Modified and If-Modified-Since Headers vs Headers Security Advanced & HSTS WPLast-Modified and If-Modified-Since Headers vs WP Last Modified Info