200 Top SEO Ranking Factors September 2026

TOP SEO Factors for 2026-09 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 Referring Domains Authority	-0.28	627	49	32 %	58 %
2	Number of Do Follow Backlinks Authority	-0.27	133206	2200	28 %	57 %
3	Number of Backlinks Authority	-0.27	134088	2283	32 %	59 %
4	Number of No Follow Backlinks Authority	-0.25	5365	150	22 %	59 %
5	Number of Unique LSI Words Used Diversity	-0.25	908	263	75 %	74 %
6	Load Time Milliseconds Performance	-0.25	21244	2070	76 %	86 %
7	Search Result Domain is .com, .net, or .org Other	-0.24	1	1	7 %	76 %
8	Search Result Domain is .com Other	-0.24	1	1	6 %	75 %
9	Number of Images Size	-0.22	81	27	63 %	88 %
10	Number of Images with ALT Text Size	-0.22	67	19	58 %	88 %
11	Number of P Tags Size	-0.22	204	39	61 %	86 %
12	Number of Top 50 Shared Factors Used Diversity	-0.21	16	11	89 %	81 %
13	Number of Top 200 Shared Factors Used Diversity	-0.21	51	36	89 %	85 %
14	Unabridged Word Count Size	-0.21	12848	1866	76 %	88 %
15	Word Count Size	-0.21	10144	1516	76 %	87 %
16	Number of Top 100 Shared Factors Used Diversity	-0.21	38	27	89 %	84 %
17	Clean Text Kilobytes Size	-0.21	82	12	62 %	89 %
18	Number of H1 Tags Size	-0.21	4	1	59 %	82 %
19	Number of Heading Tags Size	-0.21	70	20	63 %	87 %
20	Has JSON-LD Schema Markup Relevancy	-0.21	1	1	45 %	75 %
21	Has Meta Charset Technology	-0.21	1	1	63 %	84 %
22	Number of H2 Tags Size	-0.21	21	7	58 %	84 %
23	Number of HTML Tags Size	-0.2	2216	912	76 %	85 %
24	Number of Includes Technology	-0.2	54	23	68 %	78 %
25	Number of Facebook Pages Authority	-0.2	10	2	45 %	85 %
26	Variations in H1, H2, and H3 Tags Relevancy	-0.2	211	9	52 %	84 %
27	Number of DoFollow Links Authority	-0.2	333	106	70 %	84 %
28	Search Result Number of Dirs in Path Other	-0.2	4	2	67 %	77 %
29	Variations in H1-H6 Tags Relevancy	-0.2	267	10	52 %	85 %
30	Number of Links Authority	-0.2	336	109	70 %	85 %
31	Number of HTTPS Links Authority	-0.2	335	108	70 %	85 %
32	Variations in P Tags Relevancy	-0.2	3443	62	54 %	86 %
33	Average Words Per Sentence Size	-0.2	242	26	65 %	78 %
34	Number of Internal Links Authority	-0.2	312	96	68 %	82 %
35	Variations in H1 and H2 Tags Relevancy	-0.19	76	5	50 %	82 %
36	Number of Factors Used Diversity	-0.19	396	178	90 %	79 %
37	Variations in Div Tags Relevancy	-0.19	31244	346	62 %	85 %
38	Number of Unique Variations Used Diversity	-0.19	48	13	71 %	76 %
39	Variations in LI Tags Relevancy	-0.19	1981	38	52 %	84 %
40	Number of CSS Includes Technology	-0.19	21	8	62 %	70 %
41	Variations in A Tags Relevancy	-0.19	4844	59	53 %	82 %
42	Variations in Search Result Document File Name Relevancy	-0.19	7	1	39 %	83 %
43	Number of Images without ALT Text Size	-0.19	30	8	44 %	85 %
44	Entities in Sentences Relevancy	-0.19	1891	147	56 %	93 %
45	Number of Distinct Entities Used Diversity	-0.19	60	23	65 %	92 %
46	Number of External Links Authority	-0.19	38	13	64 %	89 %
47	Number of HTML Comments Size	-0.19	492	57	58 %	83 %
48	Entities in the HTML Tag Relevancy	-0.18	1892	152	61 %	92 %
49	Search Result Host Length Size	-0.18	22	16	75 %	76 %
50	Number of H3 Tags Size	-0.18	37	9	50 %	86 %
51	Number of Instagram Pages Authority	-0.18	13	2	35 %	81 %
52	Variations in H2 Tags Relevancy	-0.18	71	4	42 %	80 %
53	Search Result Domain Length Size	-0.18	22	16	75 %	76 %
54	Entities in H2 Tags	-0.18	46	7	43 %	93 %
55	Variations in H1 Tags Relevancy	-0.18	11	1	44 %	77 %
56	Variations in Body Tags Relevancy	-0.18	97091	696	69 %	81 %
57	Number of DoFollow External Links Authority	-0.18	36	12	63 %	89 %
58	Has Form Technology	-0.18	1	1	37 %	70 %
59	Number of LinkedIn Pages Authority	-0.18	4	1	25 %	79 %
60	LSI Words in Sentences Relevancy	-0.18	3764	613	53 %	93 %
61	Flesch Kincaid Reading Grade Level Other	-0.18	6	1	86 %	86 %
62	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.18	11	2	37 %	82 %
63	Variations in ALT Attributes Relevancy	-0.18	151	8	38 %	82 %
64	Variation Count in Top 30KB Relevancy	-0.18	6580	80	57 %	78 %
65	Variations in HTML Tags Relevancy	-0.18	97091	683	68 %	83 %
66	Variations in Span Tags Relevancy	-0.17	729	16	42 %	85 %
67	Leading Variations in H1-H6 Tags Relevancy	-0.17	12	2	39 %	84 %
68	Search Result Uses HTTPS Other	-0.17	1	1	73 %	70 %
69	Number of Social Pages Authority	-0.17	15	5	51 %	81 %
70	Uses JSON-LD name Other	-0.17	1	1	47 %	71 %
71	Variations in Sentences Relevancy	-0.17	3407	73	62 %	81 %
72	Number of Forms Technology	-0.17	12	2	39 %	76 %
73	Percentage of DoFollow External Links Authority	-0.17	38	13	63 %	76 %
74	Variations in Search Result URL Path Relevancy	-0.17	9	1	41 %	82 %
75	Entities in H1 Tags	-0.17	5	2	43 %	89 %
76	Number of Facebook Accounts Authority	-0.17	3	1	19 %	78 %
77	Number of Questions In Headings Size	-0.17	9	3	33 %	82 %
78	Number Of JSON-LD Types Relevancy	-0.17	77	17	48 %	82 %
79	Number of Social Accounts Authority	-0.17	5	2	31 %	82 %
80	Percentage of DoFollow Links Authority	-0.17	99	79	70 %	74 %
81	Entities in H3 Tags	-0.17	63	7	36 %	93 %
82	Variations in A Tag HREF Attributes Relevancy	-0.17	2213	58	48 %	83 %
83	Term Frequency Relevancy	-0.17	6	3	68 %	76 %
84	Number of Sentences Size	-0.17	541	139	73 %	82 %
85	Entities in Title Tag Relevancy	-0.16	10	3	56 %	91 %
86	Page Size Kilobytes Size	-0.16	933	291	74 %	59 %
87	Variations in H3 Tags Relevancy	-0.16	135	4	35 %	84 %
88	Variations in Main Tags Relevancy	-0.16	15167	169	31 %	83 %
89	Percentage of DoFollow Internal Links Authority	-0.16	91	66	68 %	68 %
90	Variations in Distinct A Tag HREF Attributes Relevancy	-0.16	1343	36	48 %	83 %
91	Headings Has Question Other	-0.16	1	1	34 %	76 %
92	Has Entities in H2 Tags Relevancy	-0.16	1	1	43 %	87 %
93	Has Meta Viewport Technology	-0.16	1	1	71 %	71 %
94	Is Home Page Other	-0.16	1	1	14 %	54 %
95	Has Meta Robots Other	-0.16	1	1	24 %	75 %
96	Inline CSS Kilobytes Size	-0.16	154	54	58 %	82 %
97	Uses JSON-LD url Other	-0.16	1	1	42 %	72 %
98	Variations in Nav Tags Relevancy	-0.16	9938	95	39 %	80 %
99	Number of Questions In H3 Tags Size	-0.16	5	2	18 %	77 %
100	LSI Words in H2 Tags Relevancy	-0.16	69	17	43 %	89 %
101	Variations in Search Result URL Relevancy	-0.16	20	2	49 %	76 %
102	Number of Absolute URLs Authority	-0.15	546	236	74 %	70 %
103	Variations in Absolute URLs Relevancy	-0.15	6009	99	51 %	82 %
104	Has Entities in H1 Tags Relevancy	-0.15	1	1	44 %	87 %
105	Variations in Search Result Link Text Relevancy	-0.15	10	2	75 %	70 %
106	Variations in the Title Tag Relevancy	-0.15	10	2	54 %	69 %
107	Variation Density in Top 30KB Relevancy	-0.15	298	6	56 %	68 %
108	Variations in Meta Description Relevancy	-0.15	44	2	50 %	68 %
109	Inline JavaScript Kilobytes Size	-0.15	557	117	70 %	54 %
110	Is Article Page Other	-0.15	1	1	36 %	67 %
111	Has Contact Page Trust	-0.15	1	1	49 %	60 %
112	Number of JavaScript Includes Technology	-0.15	40	16	70 %	78 %
113	Has US Phone Number Trust	-0.15	1	1	30 %	70 %
114	Title Length Size	-0.15	129	50	73 %	61 %
115	Search Result Summary Length Size	-0.15	216	151	88 %	67 %
116	Variations in OpenGraph Title Relevancy	-0.15	7	2	47 %	60 %
117	Variations in First 100 Words Relevancy	-0.15	187	9	56 %	78 %
118	Variations in Search Result Display URL Relevancy	-0.15	10	2	75 %	70 %
119	Variations in Footer Tags Relevancy	-0.15	4986	47	35 %	76 %
120	Variations in Section Tags Relevancy	-0.15	1231	34	34 %	84 %
121	Title Word Count Size	-0.15	17	8	74 %	64 %
122	Uses JSON-LD description Other	-0.15	1	1	38 %	67 %
123	Leading Variations in H2 Tags Relevancy	-0.15	4	1	22 %	79 %
124	Number of Twitter Accounts Authority	-0.15	2	1	14 %	80 %
125	Leading Variations in H1 Tags Relevancy	-0.15	1	1	22 %	76 %
126	Has Privacy Policy Trust	-0.15	1	1	44 %	64 %
127	Exact Matches in the HTML Tag Relevancy	-0.15	324	10	27 %	82 %
128	Number of US Phone Numbers Trust	-0.15	108	8	31 %	81 %
129	Variations in the Canonical URL Relevancy	-0.15	44	2	42 %	74 %
130	Has Apple Touch Icon Technology	-0.15	1	1	43 %	76 %
131	Number Of Claimed Brands Other	-0.15	38	3	22 %	76 %
132	Number of Email Addresses Trust	-0.15	19	4	38 %	74 %
133	Number of Prices Size	-0.14	484	109	61 %	76 %
134	Variations in Strong Tags Relevancy	-0.14	43	3	24 %	81 %
135	Variations in OpenGraph Description Relevancy	-0.14	26	2	45 %	66 %
136	LSI Words in H1 Tags Relevancy	-0.14	11	4	43 %	87 %
137	Clean Keyword Density in the HTML Tag Relevancy	-0.14	204	6	59 %	66 %
138	LSI Words in H3 Tags Relevancy	-0.14	72	18	38 %	90 %
139	Has Schema Markup Relevancy	-0.14	1	1	56 %	56 %
140	Variations in Script Tags Relevancy	-0.14	29554	213	58 %	73 %
141	Uses Schema name Other	-0.14	1	1	53 %	52 %
142	Number of Questions In H2 Tags Size	-0.14	4	1	21 %	80 %
143	Number of Questions Size	-0.14	55	14	59 %	71 %
144	Number of H4 Tags Size	-0.14	12	3	27 %	79 %
145	Has Entities in H3 Tags Relevancy	-0.14	1	1	36 %	86 %
146	Number of Nofollow Links Authority	-0.14	23	3	18 %	81 %
147	Leading Variations in Title Tag Relevancy	-0.14	1	1	27 %	75 %
148	Uses Schema organization Other	-0.14	1	1	29 %	65 %
149	Exact Matches in Top 30KB Relevancy	-0.14	9	2	16 %	76 %
150	Has Terms of Service Trust	-0.14	1	1	31 %	56 %
151	Uses JSON-LD datePublished Other	-0.14	1	1	27 %	68 %
152	Uses Schema datemodified Other	-0.14	1	1	27 %	68 %
153	Entities in Meta Description Tag Relevancy	-0.14	17	3	49 %	85 %
154	Word Count in Meta Description Size	-0.14	54	19	61 %	62 %
155	Number of NoFollow External Links Authority	-0.14	9	2	13 %	80 %
156	Variations Making Whole Span Tags Relevancy	-0.14	6	1	18 %	77 %
157	Meta Description Length Size	-0.14	394	115	61 %	62 %
158	Is OpenGraph Type Article Technology	-0.14	1	1	25 %	59 %
159	Has FavIcon Technology	-0.14	1	1	67 %	60 %
160	Has OpenGraph Type Relevancy	-0.14	1	1	55 %	57 %
161	Variations in Article Tags Relevancy	-0.14	380	21	20 %	78 %
162	Has Canonical URL Authority	-0.14	1	1	64 %	59 %
163	Number of Meta Generator Tags Technology	-0.14	2	1	29 %	70 %
164	Uses Schema url Other	-0.14	1	1	50 %	53 %
165	Uses Schema webpage Other	-0.14	1	1	29 %	67 %
166	Exact Matches in H1-H6 Tags Relevancy	-0.14	8	1	17 %	81 %
167	Has Email Trust	-0.14	1	1	38 %	67 %
168	Has Meta Description Relevancy	-0.14	1	1	59 %	57 %
169	Uses JSON-LD WebPage Other	-0.14	1	1	28 %	66 %
170	Uses JSON-LD ImageObject Other	-0.14	1	1	27 %	69 %
171	Percentage of NoFollow Links Authority	-0.14	7	2	16 %	79 %
172	Has RSS Link Authority	-0.14	1	1	23 %	61 %
173	Uses JSON-LD Organization Other	-0.13	1	1	28 %	68 %
174	TF/IDF Relevancy	-0.13	1	1	51 %	71 %
175	Uses JSON-LD dateModified Other	-0.13	1	1	26 %	69 %
176	Has OpenGraph Image Relevancy	-0.13	1	1	47 %	53 %
177	Variations Making Whole LI Tags Relevancy	-0.13	7	1	22 %	77 %
178	LSI Words in Title Tag Relevancy	-0.13	12	5	53 %	84 %
179	Variations in I Tags Relevancy	-0.13	138	5	17 %	82 %
180	Uses JSON-LD ListItem Other	-0.13	1	1	32 %	66 %
181	Uses JSON-LD BreadcrumbList Other	-0.13	1	1	31 %	65 %
182	Is Store Page Other	-0.13	1	1	34 %	68 %
183	Variations making whole A Tags Relevancy	-0.13	22	2	26 %	77 %
184	Percentage of NoFollow External Links Authority	-0.13	5	1	11 %	79 %
185	Search Result URL Length Size	-0.13	206	66	89 %	43 %
186	Uses Schema website Other	-0.13	1	1	30 %	66 %
187	Entities in H4 Tags	-0.13	10	2	15 %	90 %
188	Has XMLRPC Technology	-0.13	1	1	22 %	63 %
189	Has Google Verify Technology	-0.13	1	1	15 %	70 %
190	Uses Schema image Other	-0.13	1	1	18 %	68 %
191	Exact Matches in Title Tag Relevancy	-0.13	1	1	14 %	78 %
192	Uses JSON-LD SearchAction Other	-0.13	1	1	19 %	64 %
193	Uses Schema searchaction Other	-0.13	1	1	19 %	64 %
194	Uses Microdata AggregateRating Other	-0.13	1	1	2 %	14 %
195	Uses Schema description Other	-0.13	1	1	45 %	48 %
196	Uses Schema addresslocality Other	-0.13	1	1	19 %	65 %
197	Uses JSON-LD image Other	-0.13	1	1	15 %	71 %
198	Uses JSON-LD headline Other	-0.13	1	1	14 %	59 %
199	Search Result Has Unmodified Page Title Other	-0.13	1	1	37 %	59 %
200	Variations in Meta Twitter Content Relevancy	-0.13	10	1	24 %	49 %

Measures 154542 SEO Factors

152820 Built-In SEO Factors

143593 On-page SEO Factors

9227 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 2026-09 previous