200 Top SEO Ranking Factors May 2026

TOP SEO Factors for 2026-05 previous

Top SEO Factor data is updated daily for latest "month to date" measurements.

	Name	Correlation	#1 Max	Page 1 Avg	Usage %	Searches %
1	Number of Unique LSI Words Used Diversity	-0.23	975	295	82 %	80 %
2	Search Result Domain is .com, .net, or .org Other	-0.23	1	1	6 %	83 %
3	Load Time Milliseconds Performance	-0.22	29874	1437	82 %	95 %
4	Search Result Domain is .com Other	-0.22	1	1	6 %	84 %
5	Number of Top 100 Shared Factors Used Diversity	-0.21	38	28	97 %	95 %
6	Number of Top 200 Shared Factors Used Diversity	-0.21	51	36	97 %	95 %
7	Number of Top 50 Shared Factors Used Diversity	-0.2	16	11	96 %	94 %
8	Number of Unique Variations Used Diversity	-0.2	19	6	73 %	92 %
9	Variations in H1, H2, and H3 Tags Relevancy	-0.2	378	8	55 %	90 %
10	Variations in H1-H6 Tags Relevancy	-0.2	409	9	56 %	91 %
11	Variations in H1 and H2 Tags Relevancy	-0.19	287	5	53 %	92 %
12	Variations in Div Tags Relevancy	-0.19	68329	523	67 %	91 %
13	Variations in P Tags Relevancy	-0.19	4557	67	58 %	92 %
14	Number of Distinct Entities Used Diversity	-0.19	61	27	74 %	96 %
15	Entities in Title Tag Relevancy	-0.19	7	3	61 %	93 %
16	Variations in Body Tags Relevancy	-0.19	93621	601	72 %	91 %
17	Variations in HTML Tags Relevancy	-0.18	93621	597	71 %	91 %
18	Entities in Sentences Relevancy	-0.18	1308	133	63 %	95 %
19	Entities in the HTML Tag Relevancy	-0.18	1436	136	68 %	95 %
20	Variations in LI Tags Relevancy	-0.18	2914	45	55 %	88 %
21	Number of Factors Used Diversity	-0.18	272	168	97 %	91 %
22	Entities in H2 Tags	-0.18	46	7	47 %	96 %
23	Variations in H1 Tags Relevancy	-0.18	20	1	47 %	87 %
24	Word Count Size	-0.18	4408	1430	82 %	91 %
25	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.18	32	2	37 %	86 %
26	Number of Referring Domains Authority	-0.18	3169	173	48 %	73 %
27	Number of Backlinks Authority	-0.18	382197	10691	48 %	74 %
28	Variations in Search Result Document File Name Relevancy	-0.18	8	1	39 %	85 %
29	Number of Heading Tags Size	-0.18	49	21	69 %	89 %
30	Entities in H1 Tags	-0.18	5	2	48 %	92 %
31	Unabridged Word Count Size	-0.18	10152	1847	82 %	91 %
32	Leading Variations in H1-H6 Tags Relevancy	-0.17	36	2	39 %	87 %
33	Variations in H2 Tags Relevancy	-0.17	280	4	40 %	90 %
34	Term Frequency Relevancy	-0.17	6	3	71 %	91 %
35	Number of H2 Tags Size	-0.17	23	7	62 %	89 %
36	Clean Text Kilobytes Size	-0.17	56	12	69 %	91 %
37	Variations in Search Result Display URL Relevancy	-0.17	19	2	73 %	81 %
38	Variations in Search Result Link Text Relevancy	-0.17	19	2	73 %	81 %
39	LSI Words in Sentences Relevancy	-0.17	2378	710	60 %	96 %
40	Number of P Tags Size	-0.17	123	38	68 %	89 %
41	Variations in the Title Tag Relevancy	-0.17	23	2	59 %	85 %
42	Variations in Sentences Relevancy	-0.17	8372	90	65 %	91 %
43	Number of Do Follow Backlinks Authority	-0.17	377721	9247	44 %	72 %
44	Variation Count in Top 30KB Relevancy	-0.17	4928	46	59 %	89 %
45	Variations in Search Result URL Path Relevancy	-0.17	10	1	42 %	86 %
46	Number of HTML Tags Size	-0.17	2805	1022	82 %	89 %
47	Number of Images Size	-0.17	309	29	69 %	89 %
48	Number of No Follow Backlinks Authority	-0.17	61104	1788	36 %	67 %
49	Search Result Number of Dirs in Path Other	-0.17	3	2	72 %	81 %
50	Entities in H3 Tags	-0.16	40	7	39 %	94 %
51	Number of H1 Tags Size	-0.16	3	1	65 %	91 %
52	Variations in A Tags Relevancy	-0.16	9305	72	56 %	88 %
53	LSI Words in H2 Tags Relevancy	-0.16	91	20	51 %	93 %
54	Number of HTTPS Links Authority	-0.16	623	135	74 %	89 %
55	Number of DoFollow Links Authority	-0.16	614	133	74 %	89 %
56	Number of Internal Links Authority	-0.16	619	123	73 %	88 %
57	Number of Links Authority	-0.16	624	136	74 %	89 %
58	Number of Images with ALT Text Size	-0.16	304	20	63 %	88 %
59	Variations in Span Tags Relevancy	-0.16	1077	16	43 %	88 %
60	LSI Words in H1 Tags Relevancy	-0.16	10	4	52 %	95 %
61	Number of Includes Technology	-0.16	68	26	76 %	79 %
62	Variations in A Tag HREF Attributes Relevancy	-0.16	2876	53	50 %	89 %
63	Variations in Main Tags Relevancy	-0.16	40166	286	35 %	87 %
64	Number of H3 Tags Size	-0.16	26	9	54 %	84 %
65	LSI Words in Title Tag Relevancy	-0.15	15	5	64 %	91 %
66	Variations in Distinct A Tag HREF Attributes Relevancy	-0.15	1808	34	50 %	89 %
67	Leading Variations in H1 Tags Relevancy	-0.15	2	1	23 %	82 %
68	Variations in Script Tags Relevancy	-0.15	52712	348	59 %	87 %
69	Variations in OpenGraph Title Relevancy	-0.15	16	1	50 %	83 %
70	Variations in First 100 Words Relevancy	-0.15	177	6	57 %	86 %
71	Has Entities in H1 Tags Relevancy	-0.15	1	1	49 %	90 %
72	Variations in Absolute URLs Relevancy	-0.15	14393	148	54 %	90 %
73	Variations in Search Result URL Relevancy	-0.15	21	2	50 %	82 %
74	Variations in the Canonical URL Relevancy	-0.15	50	2	43 %	84 %
75	Number of External Links Authority	-0.15	41	15	71 %	87 %
76	Average Words Per Sentence Size	-0.15	172	29	72 %	86 %
77	Number of DoFollow External Links Authority	-0.15	40	13	70 %	87 %
78	Has Entities in H2 Tags Relevancy	-0.15	1	1	48 %	89 %
79	Number of Images without ALT Text Size	-0.15	34	9	52 %	87 %
80	Number of Facebook Pages Authority	-0.15	4	2	51 %	82 %
81	Variations in ALT Attributes Relevancy	-0.15	588	8	38 %	87 %
82	Number Of JSON-LD Types Relevancy	-0.15	63	13	52 %	85 %
83	Leading Variations in Title Tag Relevancy	-0.15	1	1	27 %	82 %
84	Number of HTML Comments Size	-0.15	521	45	65 %	87 %
85	Number of Sentences Size	-0.15	612	145	78 %	86 %
86	Has JSON-LD Schema Markup Relevancy	-0.15	1	1	49 %	82 %
87	Entities in Meta Description Tag Relevancy	-0.15	19	3	54 %	91 %
88	Clean Keyword Density in the HTML Tag Relevancy	-0.15	203	6	62 %	78 %
89	Variation Density in Top 30KB Relevancy	-0.15	310	7	55 %	82 %
90	Variations in H3 Tags Relevancy	-0.15	123	4	31 %	85 %
91	Variations in Meta Description Relevancy	-0.14	49	2	50 %	84 %
92	Exact Matches in the HTML Tag Relevancy	-0.14	242	12	30 %	88 %
93	Variations in Section Tags Relevancy	-0.14	1250	26	33 %	90 %
94	Variations in OpenGraph Description Relevancy	-0.14	45	2	45 %	81 %
95	Percentage of DoFollow Links Authority	-0.14	99	79	75 %	92 %
96	Leading Variations in H2 Tags Relevancy	-0.14	22	1	19 %	84 %
97	Flesch Kincaid Reading Grade Level Other	-0.14	6	1	93 %	86 %
98	Variations in Nav Tags Relevancy	-0.14	7034	90	40 %	87 %
99	Is Home Page Other	-0.14	1	1	18 %	38 %
100	Percentage of DoFollow Internal Links Authority	-0.14	92	68	73 %	86 %
101	Number of Questions In Headings Size	-0.14	7	2	34 %	83 %
102	Percentage of DoFollow External Links Authority	-0.14	25	12	69 %	81 %
103	TF/IDF Relevancy	-0.14	2	1	53 %	88 %
104	LSI Words in H3 Tags Relevancy	-0.14	97	21	44 %	90 %
105	Inline CSS Kilobytes Size	-0.14	189	60	63 %	87 %
106	Has Meta Charset Technology	-0.14	1	1	70 %	84 %
107	Number of JavaScript Includes Technology	-0.14	46	18	77 %	79 %
108	Number of US Phone Numbers Trust	-0.14	249	10	36 %	80 %
109	Number of Forms Technology	-0.14	10	2	46 %	81 %
110	Number of CSS Includes Technology	-0.14	22	9	69 %	78 %
111	Has Privacy Policy Trust	-0.14	1	1	58 %	75 %
112	Variations making whole H1, H2, and H3 Tags Relevancy	-0.14	3	1	11 %	78 %
113	Variations making whole H1-H6 Tags Relevancy	-0.14	3	1	12 %	80 %
114	LSI Words in Meta Description Tag Relevancy	-0.14	23	10	53 %	91 %
115	Has US Phone Number Trust	-0.14	1	1	37 %	73 %
116	Uses JSON-LD name Other	-0.14	1	1	49 %	80 %
117	Title Word Count Size	-0.14	28	8	79 %	75 %
118	Search Result Domain Length Size	-0.14	23	16	81 %	81 %
119	Search Result Host Length Size	-0.14	23	16	81 %	81 %
120	Exact Matches in H1-H6 Tags Relevancy	-0.13	8	1	19 %	86 %
121	Number of LinkedIn Pages Authority	-0.13	8	1	29 %	77 %
122	Title Length Size	-0.13	100	50	79 %	76 %
123	Title Tag Has Entities Relevancy	-0.13	1	1	62 %	86 %
124	Number of Instagram Pages Authority	-0.13	23	2	39 %	75 %
125	Number of Absolute URLs Authority	-0.13	872	272	81 %	83 %
126	Headings Has Question Other	-0.13	1	1	34 %	78 %
127	Search Result Uses HTTPS Other	-0.13	1	1	81 %	86 %
128	Has Entities in H3 Tags Relevancy	-0.13	1	1	40 %	86 %
129	Has Form Technology	-0.13	1	1	45 %	78 %
130	Number of H4 Tags Size	-0.13	23	4	31 %	82 %
131	Has Meta Viewport Technology	-0.13	1	1	79 %	82 %
132	Number of Questions Size	-0.13	63	12	63 %	80 %
133	Has Canonical URL Authority	-0.13	1	1	68 %	76 %
134	Variations in Strong Tags Relevancy	-0.13	289	4	23 %	82 %
135	Number of Prices Size	-0.13	565	99	66 %	82 %
136	Number of Social Pages Authority	-0.13	25	4	58 %	79 %
137	Variations in Footer Tags Relevancy	-0.13	6817	39	31 %	84 %
138	Entities in H4 Tags	-0.13	21	2	18 %	88 %
139	Number of Questions In H2 Tags Size	-0.13	3	1	22 %	80 %
140	Number of Facebook Accounts Authority	-0.13	2	1	24 %	78 %
141	Page Size Kilobytes Size	-0.13	748	339	80 %	76 %
142	Uses JSON-LD url Other	-0.13	1	1	45 %	79 %
143	Number of Social Accounts Authority	-0.13	8	2	37 %	79 %
144	Exact Matches in Sentences Relevancy	-0.12	37	3	21 %	88 %
145	Meta Description Length Size	-0.12	456	116	64 %	77 %
146	Uses Schema sku Other	-0.12	1	1	5 %	24 %
147	Variations Making Whole Span Tags Relevancy	-0.12	5	1	16 %	84 %
148	Uses JSON-LD Organization Other	-0.12	1	1	28 %	74 %
149	Uses JSON-LD sku Other	-0.12	1	1	5 %	24 %
150	Uses JSON-LD ListItem Other	-0.12	1	1	31 %	75 %
151	Has Terms of Service Trust	-0.12	1	1	42 %	71 %
152	Number of Questions In H3 Tags Size	-0.12	4	1	17 %	79 %
153	Variations making whole A Tags Relevancy	-0.12	115	2	23 %	81 %
154	Uses Schema organization Other	-0.12	1	1	31 %	74 %
155	Word Count in Meta Description Size	-0.12	65	19	64 %	79 %
156	Has OpenGraph Image Relevancy	-0.12	1	1	52 %	71 %
157	Inline JavaScript Kilobytes Size	-0.12	534	140	75 %	67 %
158	Has Schema Markup Relevancy	-0.12	1	1	60 %	72 %
159	Variations in I Tags Relevancy	-0.12	568	6	17 %	77 %
160	Variations Making Whole LI Tags Relevancy	-0.12	7	1	19 %	81 %
161	Uses JSON-LD description Other	-0.12	1	1	38 %	74 %
162	Uses JSON-LD BreadcrumbList Other	-0.12	1	1	30 %	76 %
163	Has Meta Robots Other	-0.12	1	1	24 %	73 %
164	Has Contact Page Trust	-0.12	1	1	59 %	74 %
165	Uses Schema product Other	-0.12	1	1	8 %	46 %
166	Exact Matches in Top 30KB Relevancy	-0.12	14	2	17 %	84 %
167	Number Of Claimed Brands Other	-0.12	60	2	23 %	80 %
168	Variations in TITLE Attributes Relevancy	-0.12	1571	10	31 %	80 %
169	Uses JSON-LD Product Other	-0.12	1	1	7 %	48 %
170	Uses Schema state Other	-0.12	1	1	3 %	17 %
171	Is Article Page Other	-0.12	1	1	39 %	70 %
172	Has Meta Description Relevancy	-0.12	1	1	63 %	74 %
173	Exact Matches in Title Tag Relevancy	-0.12	1	1	17 %	82 %
174	Search Result URL Length Size	-0.12	93	62	96 %	60 %
175	Search Result Summary Length Size	-0.12	161	152	97 %	63 %
176	Has OpenGraph Type Relevancy	-0.12	1	1	59 %	75 %
177	Number of Twitter Accounts Authority	-0.12	5	1	20 %	72 %
178	Number of H5 Tags Size	-0.12	9	2	15 %	78 %
179	Uses JSON-LD State Other	-0.12	1	1	3 %	17 %
180	Uses Schema name Other	-0.12	1	1	56 %	73 %
181	Has Meta Twitter Card Authority	-0.12	1	1	50 %	64 %
182	Has FavIcon Technology	-0.12	1	1	73 %	76 %
183	Variations in Meta Twitter Content Relevancy	-0.12	12	1	26 %	73 %
184	Has Google Verify Technology	-0.12	1	1	18 %	70 %
185	Uses JSON-LD streetAddress Other	-0.11	1	1	15 %	59 %
186	Variations in Button Tags Relevancy	-0.11	5433	35	11 %	84 %
187	Number of Nofollow Links Authority	-0.11	18	4	21 %	78 %
188	Is Category Page Other	-0.11	1	1	16 %	67 %
189	Has Apple Touch Icon Technology	-0.11	1	1	47 %	71 %
190	Variations in H4-H6 Tags Relevancy	-0.11	40	2	15 %	76 %
191	Number of Email Addresses Trust	-0.11	22	4	38 %	80 %
192	Uses Schema streetaddress Other	-0.11	1	1	16 %	59 %
193	Uses Schema addresslocality Other	-0.11	1	1	17 %	59 %
194	Uses Schema url Other	-0.11	1	1	52 %	69 %
195	Meta Description Tag Has Entities Relevancy	-0.11	1	1	53 %	82 %
196	Variations making whole H1 Tags Relevancy	-0.11	1	1	7 %	80 %
197	Uses JSON-LD postalCode Other	-0.11	1	1	15 %	59 %
198	Uses JSON-LD GeoCoordinates Other	-0.11	1	1	11 %	41 %
199	Uses Schema postalcode Other	-0.11	1	1	16 %	59 %
200	Uses JSON-LD addressLocality Other	-0.11	1	1	16 %	60 %

Measures 150593 SEO Factors

148871 Built-In SEO Factors

139669 On-page SEO Factors

9202 Google Maps SEO Factors for Local SEO

1722 SEO Factors from APIs

147 API SEO Factors for off-page SEO like backlinks and referring domains.

1575 Technology Stack SEO Factors

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TOP SEO Factors for 2026-05 previous