What is WP-CompressSaaS?

WP-CompressSaaS is a bot in the other bots category, operated by WP Compress.

Bot name
WP-CompressSaaS
Operator
WP Compress
Category
Other Bots
Type
Bot
Respects robots.txt
Not confirmed
robots.txt user agent
WP-Compress
Signs requests (Web Bot Auth)
No

About WP-CompressSaaS

OptimizerBot (WP-Compress/SaaS) scans client

Bots that do not fit the other categories. Review their purpose and allow only what you need.

WP-CompressSaaS user agent

WP-CompressSaaS identifies itself with this user agent string:

  • WP-Compress/SaaS Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36

Anyone can copy a user agent string. Transfon Security also checks where each request comes from, so a request that claims to be a known crawler but comes from the wrong network is treated as a fake, not as the real crawler.

How to block WP-CompressSaaS in robots.txt

We have not confirmed whether WP-CompressSaaS follows robots.txt. Add a rule, then check your logs to see that it stopped. robots.txt is a plain text file at the root of your domain, such as https://example.com/robots.txt.

Block WP-CompressSaaS from the whole site

User-agent: WP-Compress
Disallow: /

Block WP-CompressSaaS from some folders

User-agent: WP-Compress
Disallow: /private/
Disallow: /search

Allow WP-CompressSaaS only on some folders

User-agent: WP-Compress
Allow: /blog/
Disallow: /

Allow WP-CompressSaaS and block other crawlers

User-agent: WP-Compress
Allow: /

User-agent: *
Disallow: /

Things to know

  • Each host needs its own file. Rules on www.example.com do not apply to shop.example.com.
  • A crawler obeys only the most specific group that names it. Once you add a User-agent: WP-Compress group, WP-CompressSaaS ignores your User-agent: * rules, so repeat any that should still apply.
  • The user agent name is not case sensitive. We take WP-Compress from WP-CompressSaaS's user agent; check WP Compress's own documentation if it publishes a different robots.txt name.
  • Crawlers cache robots.txt, so changes can take up to a day to apply. Disallow stops crawling but does not remove pages already collected or indexed.

Limits of robots.txt

  1. WP-CompressSaaS may not follow the rule. robots.txt is a request that nothing enforces, and we have not confirmed that WP-CompressSaaS follows it. Check your logs after adding a rule.
  2. The user agent could be fake. robots.txt matches the name a request claims. Anyone can send WP-CompressSaaS's user agent, and a scraper using it is not bound by WP Compress's robots.txt policy. Only checking the source network tells a real WP-CompressSaaS from a fake one.

Treat robots.txt as a statement of your policy, and enforce it where requests arrive.

Who should care about WP-CompressSaaS

Publishers

Allow WP-CompressSaaS if it is a service you use, and keep its visits out of page views and ad requests either way.

Transfon Security for publishers

Media buyers and advertisers

WP-CompressSaaS is not a person. Exclude it from campaign and conversion data so reports reflect real visitors.

Transfon Security for advertisers

E-commerce

Allow WP-CompressSaaS only if it works for your store, and keep it away from cart and checkout.

Transfon Security for e-commerce

SaaS and APIs

If WP-CompressSaaS is a service you use, allow it on the endpoints it needs and block it elsewhere.

Transfon Security for SaaS and APIs

Block WP-CompressSaaS with Transfon Security

robots.txt is a request, not an enforcement. Transfon Security shows WP-CompressSaaS by name in the Top Bots report, so you can see how often it visits and which pages it reads. Block or allow it with a User Agent rule, or slow it down with a rate limit decision rule.

Transfon Security

Control WP-CompressSaaS on your site

  • See every WP-CompressSaaS visit and the pages it reads
  • Spot bots that fake trusted crawler names
  • Block, allow or rate limit WP-CompressSaaS with one rule
  • Works with or without robots.txt support

Frequently asked questions

What is WP-CompressSaaS?

WP-CompressSaaS is a bot in the other bots category, operated by WP Compress. OptimizerBot (WP-Compress/SaaS) scans client

Does WP-CompressSaaS respect robots.txt?

We have not confirmed whether WP-CompressSaaS follows robots.txt. Add a robots.txt rule, then check your logs to see that it stopped, and block it by user agent if it did not.

How do I block WP-CompressSaaS?

Add "User-agent: WP-Compress" followed by "Disallow: /" to the robots.txt file at the root of your site. To enforce it, block requests whose user agent contains "WP-Compress/SaaS" at your WAF. In Transfon Security that is one User Agent block rule.

Is robots.txt enough to block WP-CompressSaaS?

No. robots.txt is voluntary, so WP-CompressSaaS may not follow it, and anyone can send WP-CompressSaaS's user agent, so a fake WP-CompressSaaS ignores your rule. Enforce the rule where requests arrive, at your WAF, and check the source network.

Should I block WP-CompressSaaS?

Bots that do not fit the other categories. Review their purpose and allow only what you need.

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See Which Bots Visit Your Site

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