Report for


The overall score for this website.


How accessible the website is to mobile and disabled users.


How satisfying the website is likely to be for users.


How well marketed, and popular the website is.


How well designed and built the website is.

Screenshot of

Nibbler tested a sample of 5 pages from this website at 21:28 on 3 May 2021 (BST).

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Top priorities for website improvement

  • Make sure that all the pages of this website include a meta description. If you don't include one, Google will choose a sample of text from the page to appear in the search engine result. By including a meta description, you can control how your search engine result will appear. (read more)
  • Consider the amount of text on this website and increase it if appropriate. (read more)
  • Add width and height attributes to all image tags. The width and height you specify should be the same as the source image. If you want to resize an image in the browser, use CSS. (read more)

Meta tags2.0

Meta Tags (name attribute)

Page URLNameContent 7 ( 7 ( Topics's resources on environmental issues include research, basics, what you can do, and an index covering more specific terms. EPA, Learn the Issues, Science & Technology and Lists EPA,OMS Topics Directory Area 7 ( Topics about indoor and outdoor air quality, air monitoring and air pollutants. data, NAAQS the Issues, Science & Technology and Lists, Air Quality, Atmospheric Pollution, Indoor Air Pollution EPA,OMS Topics Directory page 7 ( Bugs: Get Them Out and Keep Them Out, identify, and treat bed bug infestations using EPA’s step-by-step guides, based on IPM principles. Find pesticides approved for bed bug control, check out the information clearinghouse, and dispel bed bug myths., kill bed bugs, bed bug pesticides, bed bug pictures, bed mites, bed bug signs, bed bug treatment, como matar chinches, chinches in cama, how to kill bed bugs, como eliminar las chinches, bed bug treatments, chinches de cama como eliminarlos, bed bugs how to get rid of them, freezing bed bugs, bed bug control, chinche de cama, bed bug extermination, pesticides for bed bugs, bed bug eradication, bed bug prevention, kill bed bugs with heat, bed bug insecticide, foggers for bed bugs, IPM, Integrated Pest Management, misuse of pesticides, find bed bugs, bed bugs and health, public health and bed bug, bed bug tips, landlord the Issues and Lists Organizers & Educators, Concerned Citizens & Students EPA,OCSPP Bugs Area 7 ( and Toxics Topics how to safely handle chemicals, the effects of certain toxins, which substances are controlled or managed, and safer alternatives. release, spill the Issues and Lists EPA,OMS Topics Directory page

Amount of content7.5

Rendering Chart...

  • This website has an average of 237 words per page. The amount of content on a website has been shown to correlate with its search engine ranking.
    • Consider the amount of text on this website and increase it if appropriate.


62% of images have a clearly defined size

8 images are being resized by the browser


5,285 Most popular website in the world

There has been no mentionable change in this website's popularity recently.

  • This is the 5,285 most popular website in the world.
  • Over the past 3 months, this website has experienced no measurable change in popularity.
  • This website accounts for 79.8% of the Internet traffic to and its subdomains.

Source: Alexa


This website is linked with the Twitter account @epa

This website's Twitter account has

  • This website was found to link the Twitter account U.S. EPA (@epa).
  • This website's Twitter account has made 17,716 tweets to 621,220 followers.

Source: Twitter


Mobile screenshot of www.epa.govTablet screenshot of
  • All of this website appears to be optimised for viewing on a mobile phone or a tablet.

Media specific CSS detected

MediaMin widthMax widthCSS file

Server behaviour10.0

Yes404 page


  • This website handles missing pages correctly by sending a 404 HTTP status code.
  • This website was served with GZIP encoding. This is very good because it reduces the loading time of a web page.
  • This website follows the best practice of using a permanent (HTTP 301) redirect between URLs with/without trailing slashes. This is ideal.
  • This website follows the best practice of using a permanent (HTTP 301) redirect from to This is ideal.


100% of pages use analytics

Google Tag Manager

  • Every page in this website is using Google Tag Manager. This is excellent and should allow for a complete analysis of visitor behaviour.

Page titles10.0

100% of pages have defined titles

0% of page titles are weak

  • All pages were found to use page titles appropriately. Page titles appear in search results and at the top of the browser's window when visiting the site. Appropriate page titles are particularly important for search engine optimisation.


actions agency biden-harris bugs change chemical chemicals cleaning climate common community contacts covid- data databases disinfecting environmental everyone healthy important indoor infestations keep laws learn links main management menu multilingual narrower news offices pollutants pollution popular prevent programs protection quality questions regulations related releases research resources safety search spills substances them topics toxics your

  • All pages were found to use defined headings. This is excellent as it allows visitors and search engines to summarise the content of webpages quickly. Correctly defined headings aid accessibility and are particularly important for search engine optimisation.

Page headings detail

URLHeadingLevel EPAH1 Environmental Protection AgencyH1 menuH2 Environmental Protection AgencyH2 Air – Important for EveryoneH2 ChangeH2 and DisinfectingH2 related to COVID-19H2 Environmental ActionsH2 TopicsH2 CommunityH2 from EPAH2 LinksH2 EPAH1 TopicsH1 menuH2 TopicsH2 EPAH1 TopicsH1 menuH2 & Air QualityH2 AirH2 Quality ManagementH2 PollutantsH2 You Can DoH2 Releases about AirH2 and RegulationsH2 Offices and ProgramsH2 EPAH1 Bugs: Get Them Out and Keep Them OutH1 menuH2 Bugs: Get Them Out and Keep Them OutH2 are the bed bugs?H2 About Bed BugsH2 InfestationsH2 Rid of Bed BugsH2 Topics and ResourcesH2 EPAH1 and Toxics TopicsH1 menuH2 SubstancesH2 SafetyH2 Search by ChemicalH2 and SpillsH2 Releases About Chemicals and ToxicsH2 Chemical ContactsH2


100% of pages are optimised for printing

  • All of this website appears to be optimised for printing (using CSS).

Media specific CSS detected

MediaMin widthMax widthCSS file

URL format10.0

  • This website uses appropriate web addresses (URLs) throughout. This is excellent and will help search engine placement, usability and the marketability of this website.


Last updated May 3, 2021

  • It looks like this website was last updated on Monday, 3 May 2021. This is good because visitors perceive up-to-date websites as more credible. Websites that are updated regularly are also spidered by search engines more often.
  • To find this information we used the last modified dates reported by this website's server in addition to looking for dates written on each page.

All dates found

27/01/ text
03/05/ text
27/01/ text
30/09/ text
08/04/ text
17/10/ text
29/04/ text
19/03/ modified header
22/01/ modified header
22/01/ modified header
16/12/ modified header
02/11/ modified header
08/05/ modified header
26/01/ modified header
28/04/ modified header
07/12/ modified header

Domain agei

  • Sorry, we cannot check the domain age of .gov websites.

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