This category includes the following types of materials:

• Web pages containing any photo, video or text materials depicting genitals of humans or humanoids, or acts of sexual intercourse or self-stimulation, performed by human beings or humanoids.
• Web pages containing erotic materials, works that realistically portray human sexual behavior, or works of art designed to stimulate sexual arousal.
• Web pages devoted to the discussion of sexuality in human relations. Web pages devoted to any sexual practice.
• Web pages devoted to nudism, including but not limited to community sites, special recreation areas, and hosting of photos related to nudism.
• Web pages about sex education.
• Web pages providing online or offline sexual services, dating for sex, including virtual sex.
• Web pages that advertise or sell items for use in sex and/or stimulation of sexual arousal.
• Web pages containing information about abortion.

This category and its subcategories (if any) may not include:

• Educational websites and encyclopedias.
• Websites of government institutions at all levels.
• Websites of official media outlets and newspapers.
• Websites of scientific and medical institutions.
• Websites of schools and universities.
• Websites where children are the only intended audience.

This category includes web resources whose content is directly or indirectly related to alcoholic or alcohol-containing products, tobacco products, electronic cigarettes, and narcotic, psychotropic and/or intoxicating substances.

This category and its subcategories (if any) may not include:

• Educational websites and encyclopedias.
• Websites of government institutions at all levels.
• Websites of official media outlets and newspapers.
• Websites of scientific and medical institutions.
• Websites of schools and universities.
• Websites where children are the only intended audience.

This category includes web pages with materials on public movements, associations, and organizations with any manifestation of a religious and/or cultlike ideology:

• Websites of official religious organizations at different levels, from international religions to local religious communities.
• Websites of unregistered religious associations and societies that historically emerged by splintering from a dominant religious association or community.
• Websites of religious associations and communities that have emerged independently of traditional religious movements, including at the initiative of a specific founder.
• Websites of inter-confessional organizations pursuing cooperation among members of different traditional religions.
• Web pages with detailed portrayals or descriptions of worship in religious cults, including rites and rituals involving the worship of God, beings and/or items believed to have supernatural powers.

This category and its subcategories (if any) may not include:

• Educational websites and encyclopedias.
• Websites of government institutions at all levels.
• Websites of official media outlets and newspapers.
• Websites of scientific and medical institutions.
• Websites of schools and universities.
• Websites where children are the only intended audience.

This category includes web resources with public news content created by mass media or online publications that let users add their own news reports:

• Websites of official media outlets.
• Websites offering information services with the attribution of official information sources.
• Websites offering services that aggregate news or offer news from various official and unofficial sources.
• Websites where news content is created by users themselves ("social news sites").

Web pages falling in this category may not be assigned to other categories.

This category includes web resources with information about the military, weapons, explosives, and pyrotechnical products. The term "weapons" means devices, items designed to harm the life or health of humans and animals and/or damage equipment and structures. It includes replica weapons. This category includes the following types of materials:

• Websites of weapons, explosives, pyrotechnical products and related accessory manufacturers and stores.
• Web pages devoted to the manufacture or use of weapons, explosives, and pyrotechnical products and related accessories.
• Web pages containing hunting and survival supplies (e.g. knives, survival kits, stabbing weapons, daggers, etc).
• Web pages about shooting sports and airsoft weapons.
• Web pages containing analytical, historical and manufacturing materials devoted to weapons, explosives and pyrotechnical products.
• Web pages containing military-related topics, tactical gear, descriptions of armed forces, military contractors, armed conflicts, armed groups and military doctrines.

This category and its subcategories (if any) may not include:

• Educational websites and encyclopedias.
• Websites of government institutions at all levels.
• Websites of official media outlets and newspapers.
• Websites of scientific and medical institutions.
• Websites of schools and universities.
• Websites where children are the only intended audience.

This category includes web resources designed to bring together employers and job seekers:

• Websites of recruitment agencies (employment agencies and/or headhunting agencies).
• Websites of employers with descriptions of available job openings and their benefits.
• Independent portals with employment offers from employers and recruitment agencies, including freelance platforms and job marketplaces.
• Professional social networks that, among other things, make it possible to publish or find information about specialists who are not actively searching for employment.

This category and its subcategories (if any) may not include:

• Educational websites and encyclopedias.
• Websites of government institutions at all levels.
• Websites of official media outlets and newspapers.
• Websites of scientific and medical institutions.
• Websites of schools and universities.
• Websites where children are the only intended audience.

This category includes web resources where users can download software packages.

This category includes web resources that provide information or tools to download the content of other web resources in order to:

• Anonymously access web resources, including web resources that specifically reject HTTP requests from certain IP addresses or address groups (for example, IP addresses grouped by country of origin).
• Bypass restrictions imposed by an internet service provider or local network administrator on access to web addresses or IP addresses.
• Substitution of IP address.
• Send anonymous emails.

This category includes both web resources with content intended for the aforementioned purposes (VPNs, "anonymizers", etc.) as well as web resources with technically similar functionality.

This category includes websites of online stores, payment systems, banks, online wallets and cryptocurrency websites.

This category includes the following types of materials:

• Web pages that contain any photo, video, or text content that describes or depicts physical or psychological abuse of human beings or cruelty towards animals.
• Web pages that contain descriptions or depictions of murder, fights, torture, rape, or abusive actions towards human beings, animals, or imaginary creatures.
• Web pages that contain descriptions or depictions of victims or atrocities of wars, armed conflicts, and other depictions of suffering people.
• Web pages that contain disturbing or upsetting content, such as gore, mutilation, brutal accidents, etc.
• Web pages that promote actions that constitute a threat to life and/or health, self-harm or suicide.
• Web pages that contain information about eating disorders, promote them or contain approving discussions of them.
• Websites associated with internationally recognized terrorist, extremist or racist organizations.

This category and its subcategories (if any) may not include:

• Educational websites and encyclopedias.
• Websites of government institutions at all levels.
• Websites of official media outlets and newspapers.
• Websites of scientific and medical institutions.
• Websites of schools and universities.
• Websites where children are the only intended audience.

This category includes web pages where profane language is detected.

This category includes web resources that enable users (whether registered or not) to send personal messages to other users and/or post messages (either open to the public or to a limited audience) on the website.

This category includes web pages devoted to various genre of video games:

• Websites of developers whose main business is video games.
• Web pages devoted to a discussion of video games.
• Web pages providing the technical ability to participate in online gaming, individually or together with other players.
• Web pages that allow game play with or without local installation of applications ("browser games").
• Web pages designed to advertise, distribute, and support gaming software.

This category includes web pages offering:

• Gambling in which participants can participate financially, even if such financial participation is not a mandatory condition for accessing the website.
• Sweepstakes that involve betting with money.
• Lotteries that involve purchasing lottery tickets or numbers.
• Information that can trigger the desire to participate in gambling, sweepstakes, and lotteries.
• Online games that offer free participation in a separate mode.

This category may include web pages that actively advertise third-party resources falling into this category.

This category and its subcategories (if any) may not include:

• Educational websites and encyclopedias.
• Websites of government institutions at all levels.
• Websites of official media outlets and newspapers.
• Websites of scientific and medical institutions.
• Websites of schools and universities.
• Websites where children are the only intended audience.

This category includes web resources blocked by legislation in individual countries.

The category includes ads banners on websites and in the interface of some applications.

This category includes websites of services and tools that are based on artificial intelligence algorithms for:

• Generating original content such as text, images, videos, music, code, etc.
• Analyzing existing content such as text, videos, audio, code, etc.

This category includes web resources that fraudsters may use to deceive users online. These include sites of financial pyramid schemes, pawn shops and online stores offering products that look like famous brands, but are actually fakes or counterfeits. Visiting these sites can lead to personal data leakage, financial loss or the purchase of substandard goods.

Sites are included in this category based on data from public records provided by independent organizations and government agencies:

• Federal Consumer Association (Germany)
• Watchlist Internet (Austria)
• Central Bank of the Russian Federation (Russia)